BitmapMetadata

[Roger]

Hi all

I have managed read metadata from an image file using BitmapMetaData, and
that works fine,

but I am having trouble finding out how to write the information back to the
Image

can anyone help with this please

Thanks in advance

Roger

[=?Utf-8?B?Sm95?=]

RE: BitmapMetadata

Hi Roger,
Let me know if the following link was of any help to you:

http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapmetadata.aspx

regards,
Joy

"Roger" wrote:

Hi all
>
I have managed read metadata from an image file using BitmapMetaData, and
that works fine,
>
but I am having trouble finding out how to write the information back to the
Image
>
can anyone help with this please
>
Thanks in advance
>
Roger
>

[Munna]

Re: BitmapMetadata

On May 26, 7:39 pm, "Roger" <ro...@barretti nteriors.co.ukw rote:

Hi all
>
I have managed read metadata from an image file using BitmapMetaData, and
that works fine,
>
but I am having trouble finding out how to write the information back to the
Image
>
can anyone help with this please
>
Thanks in advance
>
Roger

Hi

check out this component
may help you

http://www.element-it.com/ImageProperties.aspx

Best of luck

Munna

https://www.munna.shatkotha.com

https://www.munna.shatkotha.com/blog

https://www.shatkotha.com

[Roger]

Re: BitmapMetadata

Thanks for the link.

I have looked there and tried a few examples that i have found oround the
net.

It seems that its all a little sketchy, and i have yet to find any one who
have got this to work.

I have found a c# libray which i am looking into now but it seems that the
EXIF standard and MS standard are different.

If you change the tags in Vista they do not seem to match the EXIF format.

I have spent the weekend looking into this and am able to read tags with no
problem at all.

Writing to the tags seems a whole different ball game.

I will keep trying.

Anymore suggestions would be welcome.

If I find away to make this work i will post the soloution.

Great New group by the way I will try and participate

Thanks again for the suggestions

Roger

"Joy" <Joy@discussion s.microsoft.com wrote in message
news:8A42F91A-C1ED-4594-9CC4-8D6985C73E02@mi crosoft.com...

Hi Roger,
Let me know if the following link was of any help to you:
>

http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapmetadata.aspx

>
regards,
Joy
>
"Roger" wrote:
>

>Hi all
>>
>I have managed read metadata from an image file using BitmapMetaData, and
>that works fine,
>>
>but I am having trouble finding out how to write the information back to
>the
>Image
>>
>can anyone help with this please
>>
>Thanks in advance
>>
>Roger
>>

[=?Utf-8?B?Sm95?=]

Re: BitmapMetadata

Hi Roger,
Can you post the code piece so that i will have more clarity on as to what
are you trying to do and hence will be more accomplished to give my inputs
for the same.

regards,
Joy

"Roger" wrote:

Thanks for the link.
>
I have looked there and tried a few examples that i have found oround the
net.
>
It seems that its all a little sketchy, and i have yet to find any one who
have got this to work.
>
I have found a c# libray which i am looking into now but it seems that the
EXIF standard and MS standard are different.
>
If you change the tags in Vista they do not seem to match the EXIF format.
>
I have spent the weekend looking into this and am able to read tags with no
problem at all.
>
Writing to the tags seems a whole different ball game.
>
I will keep trying.
>
Anymore suggestions would be welcome.
>
If I find away to make this work i will post the soloution.
>
Great New group by the way I will try and participate
>
Thanks again for the suggestions
>
Roger
>
"Joy" <Joy@discussion s.microsoft.com wrote in message
news:8A42F91A-C1ED-4594-9CC4-8D6985C73E02@mi crosoft.com...

Hi Roger,
Let me know if the following link was of any help to you:

http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapmetadata.aspx

regards,
Joy

"Roger" wrote:

Hi all
>
I have managed read metadata from an image file using BitmapMetaData, and
that works fine,
>
but I am having trouble finding out how to write the information back to
the
Image
>
can anyone help with this please
>
Thanks in advance
>
Roger
>

>

[Roger]

Re: BitmapMetadata

Code I have used so far

This is the class i have for reding the data which works fine
<snip>
using System.Windows. Media.Imaging;
using System.IO;
<snip>

/// <summary>
/// Returns Image MetaData Preformated in a table
/// using System.Windows. Media.Imaging (ref)
/// dot.net 3.5 standard
///
/// </summary>

public static string returnMetaData( string imgFile)
{
string MetaData = null;




BitmapSource img = BitmapFrame.Cre ate(new Uri(imgFile));
BitmapMetadata meta = (BitmapMetadata )img.Metadata;
// MetaData
MetaData += "Title: " + meta.Title + Environment.New Line;
MetaData += "Subject: " + meta.Subject + Environment.New Line;
MetaData += "Comment: " + meta.Comment + Environment.New Line;
MetaData += "Date taken: " + meta.DateTaken +
Environment.New Line;
MetaData += "Authors: " + meta.Author + Environment.New Line;

/* Image data */
double mpixel = (img.PixelHeigh t * img.PixelWidth) /
(double)1000000 ;
MetaData +="Image Width: "+ img.PixelWidth + "px"+
Environment.New Line;
MetaData +="Image Height: "+ img.PixelHeight + "px"+
Environment.New Line;
MetaData +="Megapixels : " + mpixel + Environment.New Line;
MetaData += "DPI: " + img.DpiX + img.DpiY +Environment.Ne wLine;

// More Metadata
MetaData += "Camera Maker: " + meta.CameraManu facturer +
Environment.New Line;
MetaData += "Camera Model: " + meta.CameraMode l +
Environment.New Line;
MetaData += "Edited in: " + meta.Applicatio nName +
Environment.New Line;
MetaData += "Copyright: " + meta.Copyright +
Environment.New Line;

// remove unsafe characters for ajax postback

MetaData = MetaData.Replac e ("<","");
MetaData = MetaData.Replac e (">","");
return MetaData ;

}



This is the code i have been trying to write the data with out sucess

imageFile = "c://users//roger//documents//test.jpg";
bool done = true;
Stream jpgStream = new System.IO.FileS tream(imageFile ,
FileMode.Open, FileAccess.Read Write, FileShare.ReadW rite);
JpegBitmapDecod er jpgDecoder = new JpegBitmapDecod er(jpgStream,
BitmapCreateOpt ions.PreservePi xelFormat, BitmapCacheOpti on.Default);
BitmapFrame jpgFrame = jpgDecoder.Fram es[0];
InPlaceBitmapMe tadataWriter jpgInplace =
jpgFrame.Create InPlaceBitmapMe tadataWriter();
if (jpgInplace.Try Save() == true)
{

jpgInplace.SetQ uery("/Text/Title", "Have a nice day");
}
jpgStream.Close ();
--------------------------------------------------------------------------------------------------------


"Joy" <Joy@discussion s.microsoft.com wrote in message
news:700B6A65-009D-4080-AB98-F51B85BC5CC7@mi crosoft.com...

Hi Roger,
Can you post the code piece so that i will have more clarity on as to what
are you trying to do and hence will be more accomplished to give my inputs
for the same.
>
regards,
Joy
>
"Roger" wrote:
>

>Thanks for the link.
>>
>I have looked there and tried a few examples that i have found oround the
>net.
>>
>It seems that its all a little sketchy, and i have yet to find any one
>who
>have got this to work.
>>
>I have found a c# libray which i am looking into now but it seems that
>the
>EXIF standard and MS standard are different.
>>
>If you change the tags in Vista they do not seem to match the EXIF
>format.
>>
>I have spent the weekend looking into this and am able to read tags with
>no
>problem at all.
>>
>Writing to the tags seems a whole different ball game.
>>
>I will keep trying.
>>
>Anymore suggestions would be welcome.
>>
>If I find away to make this work i will post the soloution.
>>
>Great New group by the way I will try and participate
>>
>Thanks again for the suggestions
>>
>Roger
>>
>"Joy" <Joy@discussion s.microsoft.com wrote in message
>news:8A42F91 A-C1ED-4594-9CC4-8D6985C73E02@mi crosoft.com...

Hi Roger,
Let me know if the following link was of any help to you:
>

http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapmetadata.aspx

>
regards,
Joy
>
"Roger" wrote:
>
>Hi all
>>
>I have managed read metadata from an image file using BitmapMetaData,
>and
>that works fine,
>>
>but I am having trouble finding out how to write the information back
>to
>the
>Image
>>
>can anyone help with this please
>>
>Thanks in advance
>>
>Roger
>>

>>

[=?Utf-8?B?Sm95?=]

Re: BitmapMetadata

Hi Roger,
Please let me know which version of the .NET Framework have you been using
and also visit the following Url and let me know if it makes some sense to
you:

http://www.vsj.co.uk/dotnet/display.asp?id=649

Please also let me know what specific error/exception have you been getting?

regards,
Joy

"Roger" wrote:

Code I have used so far
>
This is the class i have for reding the data which works fine
<snip>
using System.Windows. Media.Imaging;
using System.IO;
<snip>
>
/// <summary>
/// Returns Image MetaData Preformated in a table
/// using System.Windows. Media.Imaging (ref)
/// dot.net 3.5 standard
///
/// </summary>
>
public static string returnMetaData( string imgFile)
{
string MetaData = null;
>
>
>
>
BitmapSource img = BitmapFrame.Cre ate(new Uri(imgFile));
BitmapMetadata meta = (BitmapMetadata )img.Metadata;
// MetaData
MetaData += "Title: " + meta.Title + Environment.New Line;
MetaData += "Subject: " + meta.Subject + Environment.New Line;
MetaData += "Comment: " + meta.Comment + Environment.New Line;
MetaData += "Date taken: " + meta.DateTaken +
Environment.New Line;
MetaData += "Authors: " + meta.Author + Environment.New Line;
>
/* Image data */
double mpixel = (img.PixelHeigh t * img.PixelWidth) /
(double)1000000 ;
MetaData +="Image Width: "+ img.PixelWidth + "px"+
Environment.New Line;
MetaData +="Image Height: "+ img.PixelHeight + "px"+
Environment.New Line;
MetaData +="Megapixels : " + mpixel + Environment.New Line;
MetaData += "DPI: " + img.DpiX + img.DpiY +Environment.Ne wLine;
>
// More Metadata
MetaData += "Camera Maker: " + meta.CameraManu facturer +
Environment.New Line;
MetaData += "Camera Model: " + meta.CameraMode l +
Environment.New Line;
MetaData += "Edited in: " + meta.Applicatio nName +
Environment.New Line;
MetaData += "Copyright: " + meta.Copyright +
Environment.New Line;
>
// remove unsafe characters for ajax postback
>
MetaData = MetaData.Replac e ("<","");
MetaData = MetaData.Replac e (">","");
return MetaData ;
>
}
>
>
>
This is the code i have been trying to write the data with out sucess
>
imageFile = "c://users//roger//documents//test.jpg";
bool done = true;
Stream jpgStream = new System.IO.FileS tream(imageFile ,
FileMode.Open, FileAccess.Read Write, FileShare.ReadW rite);
JpegBitmapDecod er jpgDecoder = new JpegBitmapDecod er(jpgStream,
BitmapCreateOpt ions.PreservePi xelFormat, BitmapCacheOpti on.Default);
BitmapFrame jpgFrame = jpgDecoder.Fram es[0];
InPlaceBitmapMe tadataWriter jpgInplace =
jpgFrame.Create InPlaceBitmapMe tadataWriter();
if (jpgInplace.Try Save() == true)
{
>
jpgInplace.SetQ uery("/Text/Title", "Have a nice day");
}
jpgStream.Close ();
--------------------------------------------------------------------------------------------------------
>
>
"Joy" <Joy@discussion s.microsoft.com wrote in message
news:700B6A65-009D-4080-AB98-F51B85BC5CC7@mi crosoft.com...

Hi Roger,
Can you post the code piece so that i will have more clarity on as to what
are you trying to do and hence will be more accomplished to give my inputs
for the same.

regards,
Joy

"Roger" wrote:

Thanks for the link.
>
I have looked there and tried a few examples that i have found oround the
net.
>
It seems that its all a little sketchy, and i have yet to find any one
who
have got this to work.
>
I have found a c# libray which i am looking into now but it seems that
the
EXIF standard and MS standard are different.
>
If you change the tags in Vista they do not seem to match the EXIF
format.
>
I have spent the weekend looking into this and am able to read tags with
no
problem at all.
>
Writing to the tags seems a whole different ball game.
>
I will keep trying.
>
Anymore suggestions would be welcome.
>
If I find away to make this work i will post the soloution.
>
Great New group by the way I will try and participate
>
Thanks again for the suggestions
>
Roger
>
"Joy" <Joy@discussion s.microsoft.com wrote in message
news:8A42F91A-C1ED-4594-9CC4-8D6985C73E02@mi crosoft.com...
Hi Roger,
Let me know if the following link was of any help to you:

http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapmetadata.aspx

regards,
Joy

"Roger" wrote:

Hi all
>
I have managed read metadata from an image file using BitmapMetaData,
and
that works fine,
>
but I am having trouble finding out how to write the information back
to
the
Image
>
can anyone help with this please
>
Thanks in advance
>
Roger
>
>

>

[=?Utf-8?B?Sm95?=]

Re: BitmapMetadata

Hi Roger,
I tried the code given on MSDN on the following Url:

http://msdn.microsoft.com/en-us/library/aa970450.aspx

And it was running perfectly for me, so please let me know which version of
..NET are you using and also what is the specific error\exception that you
have been getting.

regards,
Joy

"Roger" wrote:

Code I have used so far
>
This is the class i have for reding the data which works fine
<snip>
using System.Windows. Media.Imaging;
using System.IO;
<snip>
>
/// <summary>
/// Returns Image MetaData Preformated in a table
/// using System.Windows. Media.Imaging (ref)
/// dot.net 3.5 standard
///
/// </summary>
>
public static string returnMetaData( string imgFile)
{
string MetaData = null;
>
>
>
>
BitmapSource img = BitmapFrame.Cre ate(new Uri(imgFile));
BitmapMetadata meta = (BitmapMetadata )img.Metadata;
// MetaData
MetaData += "Title: " + meta.Title + Environment.New Line;
MetaData += "Subject: " + meta.Subject + Environment.New Line;
MetaData += "Comment: " + meta.Comment + Environment.New Line;
MetaData += "Date taken: " + meta.DateTaken +
Environment.New Line;
MetaData += "Authors: " + meta.Author + Environment.New Line;
>
/* Image data */
double mpixel = (img.PixelHeigh t * img.PixelWidth) /
(double)1000000 ;
MetaData +="Image Width: "+ img.PixelWidth + "px"+
Environment.New Line;
MetaData +="Image Height: "+ img.PixelHeight + "px"+
Environment.New Line;
MetaData +="Megapixels : " + mpixel + Environment.New Line;
MetaData += "DPI: " + img.DpiX + img.DpiY +Environment.Ne wLine;
>
// More Metadata
MetaData += "Camera Maker: " + meta.CameraManu facturer +
Environment.New Line;
MetaData += "Camera Model: " + meta.CameraMode l +
Environment.New Line;
MetaData += "Edited in: " + meta.Applicatio nName +
Environment.New Line;
MetaData += "Copyright: " + meta.Copyright +
Environment.New Line;
>
// remove unsafe characters for ajax postback
>
MetaData = MetaData.Replac e ("<","");
MetaData = MetaData.Replac e (">","");
return MetaData ;
>
}
>
>
>
This is the code i have been trying to write the data with out sucess
>
imageFile = "c://users//roger//documents//test.jpg";
bool done = true;
Stream jpgStream = new System.IO.FileS tream(imageFile ,
FileMode.Open, FileAccess.Read Write, FileShare.ReadW rite);
JpegBitmapDecod er jpgDecoder = new JpegBitmapDecod er(jpgStream,
BitmapCreateOpt ions.PreservePi xelFormat, BitmapCacheOpti on.Default);
BitmapFrame jpgFrame = jpgDecoder.Fram es[0];
InPlaceBitmapMe tadataWriter jpgInplace =
jpgFrame.Create InPlaceBitmapMe tadataWriter();
if (jpgInplace.Try Save() == true)
{
>
jpgInplace.SetQ uery("/Text/Title", "Have a nice day");
}
jpgStream.Close ();
--------------------------------------------------------------------------------------------------------
>
>
"Joy" <Joy@discussion s.microsoft.com wrote in message
news:700B6A65-009D-4080-AB98-F51B85BC5CC7@mi crosoft.com...

Hi Roger,
Can you post the code piece so that i will have more clarity on as to what
are you trying to do and hence will be more accomplished to give my inputs
for the same.

regards,
Joy

"Roger" wrote:

Thanks for the link.
>
I have looked there and tried a few examples that i have found oround the
net.
>
It seems that its all a little sketchy, and i have yet to find any one
who
have got this to work.
>
I have found a c# libray which i am looking into now but it seems that
the
EXIF standard and MS standard are different.
>
If you change the tags in Vista they do not seem to match the EXIF
format.
>
I have spent the weekend looking into this and am able to read tags with
no
problem at all.
>
Writing to the tags seems a whole different ball game.
>
I will keep trying.
>
Anymore suggestions would be welcome.
>
If I find away to make this work i will post the soloution.
>
Great New group by the way I will try and participate
>
Thanks again for the suggestions
>
Roger
>
"Joy" <Joy@discussion s.microsoft.com wrote in message
news:8A42F91A-C1ED-4594-9CC4-8D6985C73E02@mi crosoft.com...
Hi Roger,
Let me know if the following link was of any help to you:

http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapmetadata.aspx

regards,
Joy

"Roger" wrote:

Hi all
>
I have managed read metadata from an image file using BitmapMetaData,
and
that works fine,
>
but I am having trouble finding out how to write the information back
to
the
Image
>
can anyone help with this please
>
Thanks in advance
>
Roger
>
>

>

[Roger]

Re: BitmapMetadata

Sorry I Have been away.

Anyway .net 3.5 and the code you suggested is what i have used except i have
change it from tiff to jpeg

I have read the skimpy examples the msdn provides.

Did you try it with a jpeg?

Thanks


Roger

"Joy" <Joy@discussion s.microsoft.com wrote in message
news:63DB352F-603C-4658-A09F-F37A1FD39EEE@mi crosoft.com...

Hi Roger,
I tried the code given on MSDN on the following Url:
>

http://msdn.microsoft.com/en-us/library/aa970450.aspx

>
And it was running perfectly for me, so please let me know which version
of
.NET are you using and also what is the specific error\exception that you
have been getting.
>
regards,
Joy
>
"Roger" wrote:
>

>Code I have used so far
>>
>This is the class i have for reding the data which works fine
><snip>
>using System.Windows. Media.Imaging;
>using System.IO;
><snip>
>>
> /// <summary>
> /// Returns Image MetaData Preformated in a table
> /// using System.Windows. Media.Imaging (ref)
> /// dot.net 3.5 standard
> ///
> /// </summary>
>>
> public static string returnMetaData( string imgFile)
> {
> string MetaData = null;
>>
>>
>>
>>
> BitmapSource img = BitmapFrame.Cre ate(new Uri(imgFile));
> BitmapMetadata meta = (BitmapMetadata )img.Metadata;
> // MetaData
> MetaData += "Title: " + meta.Title + Environment.New Line;
> MetaData += "Subject: " + meta.Subject + Environment.New Line;
> MetaData += "Comment: " + meta.Comment + Environment.New Line;
> MetaData += "Date taken: " + meta.DateTaken +
>Environment.Ne wLine;
> MetaData += "Authors: " + meta.Author + Environment.New Line;
>>
> /* Image data */
> double mpixel = (img.PixelHeigh t * img.PixelWidth) /
>(double)100000 0;
> MetaData +="Image Width: "+ img.PixelWidth + "px"+
>Environment.Ne wLine;
> MetaData +="Image Height: "+ img.PixelHeight + "px"+
>Environment.Ne wLine;
> MetaData +="Megapixels : " + mpixel + Environment.New Line;
> MetaData += "DPI: " + img.DpiX + img.DpiY
>+Environment.N ewLine;
>>
> // More Metadata
> MetaData += "Camera Maker: " + meta.CameraManu facturer +
>Environment.Ne wLine;
> MetaData += "Camera Model: " + meta.CameraMode l +
>Environment.Ne wLine;
> MetaData += "Edited in: " + meta.Applicatio nName +
>Environment.Ne wLine;
> MetaData += "Copyright: " + meta.Copyright +
>Environment.Ne wLine;
>>
> // remove unsafe characters for ajax postback
>>
> MetaData = MetaData.Replac e ("<","");
> MetaData = MetaData.Replac e (">","");
> return MetaData ;
>>
> }
>>
>>
>>
>This is the code i have been trying to write the data with out sucess
>>
>imageFile = "c://users//roger//documents//test.jpg";
> bool done = true;
> Stream jpgStream = new System.IO.FileS tream(imageFile ,
>FileMode.Ope n, FileAccess.Read Write, FileShare.ReadW rite);
> JpegBitmapDecod er jpgDecoder = new
>JpegBitmapDeco der(jpgStream,
>BitmapCreateOp tions.PreserveP ixelFormat, BitmapCacheOpti on.Default);
> BitmapFrame jpgFrame = jpgDecoder.Fram es[0];
> InPlaceBitmapMe tadataWriter jpgInplace =
>jpgFrame.Creat eInPlaceBitmapM etadataWriter() ;
> if (jpgInplace.Try Save() == true)
> {
>>
> jpgInplace.SetQ uery("/Text/Title", "Have a nice day");
> }
> jpgStream.Close ();
>--------------------------------------------------------------------------------------------------------
>>
>>
>"Joy" <Joy@discussion s.microsoft.com wrote in message
>news:700B6A6 5-009D-4080-AB98-F51B85BC5CC7@mi crosoft.com...

Hi Roger,
Can you post the code piece so that i will have more clarity on as to
what
are you trying to do and hence will be more accomplished to give my
inputs
for the same.
>
regards,
Joy
>
"Roger" wrote:
>
>Thanks for the link.
>>
>I have looked there and tried a few examples that i have found oround
>the
>net.
>>
>It seems that its all a little sketchy, and i have yet to find any one
>who
>have got this to work.
>>
>I have found a c# libray which i am looking into now but it seems that
>the
>EXIF standard and MS standard are different.
>>
>If you change the tags in Vista they do not seem to match the EXIF
>format.
>>
>I have spent the weekend looking into this and am able to read tags
>with
>no
>problem at all.
>>
>Writing to the tags seems a whole different ball game.
>>
>I will keep trying.
>>
>Anymore suggestions would be welcome.
>>
>If I find away to make this work i will post the soloution.
>>
>Great New group by the way I will try and participate
>>
>Thanks again for the suggestions
>>
>Roger
>>
>"Joy" <Joy@discussion s.microsoft.com wrote in message
>news:8A42F91 A-C1ED-4594-9CC4-8D6985C73E02@mi crosoft.com...
Hi Roger,
Let me know if the following link was of any help to you:
>

http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapmetadata.aspx

>
regards,
Joy
>
"Roger" wrote:
>
>Hi all
>>
>I have managed read metadata from an image file using
>BitmapMetaData ,
>and
>that works fine,
>>
>but I am having trouble finding out how to write the information
>back
>to
>the
>Image
>>
>can anyone help with this please
>>
>Thanks in advance
>>
>Roger
>>
>>

>>

[=?Utf-8?B?Sm95?=]

Re: BitmapMetadata

Hi Roger,
Perhaps i have figured out why is it not working for you when you are
dealing with JPEG file, as in my case it works perfectly even for JPG file. :)

Please do the following:
1. Open the solution explorer.
2. Make sure that the JPG file gets copied to the Bin folder of the
application. This is how you can make sure that: right click the JPG file in
the solution explorer and click on Properties and then set the following
properties:
a) Build Action - Content
b) Copy to Output Directory - Copy always

Please note here that i have also tried the same code with reading the file
from a location other than the application directory e.g. c:\\smiley.jpg and
it worked perfectly in that case as well.

Please let me know if it worked for you.

regards,
Joy

"Roger" wrote:

Sorry I Have been away.
>
Anyway .net 3.5 and the code you suggested is what i have used except i have
change it from tiff to jpeg
>
I have read the skimpy examples the msdn provides.
>
Did you try it with a jpeg?
>
Thanks
>
>
Roger
>
"Joy" <Joy@discussion s.microsoft.com wrote in message
news:63DB352F-603C-4658-A09F-F37A1FD39EEE@mi crosoft.com...

Hi Roger,
I tried the code given on MSDN on the following Url:

http://msdn.microsoft.com/en-us/library/aa970450.aspx

And it was running perfectly for me, so please let me know which version
of
.NET are you using and also what is the specific error\exception that you
have been getting.

regards,
Joy

"Roger" wrote:

Code I have used so far
>
This is the class i have for reding the data which works fine
<snip>
using System.Windows. Media.Imaging;
using System.IO;
<snip>
>
/// <summary>
/// Returns Image MetaData Preformated in a table
/// using System.Windows. Media.Imaging (ref)
/// dot.net 3.5 standard
///
/// </summary>
>
public static string returnMetaData( string imgFile)
{
string MetaData = null;
>
>
>
>
BitmapSource img = BitmapFrame.Cre ate(new Uri(imgFile));
BitmapMetadata meta = (BitmapMetadata )img.Metadata;
// MetaData
MetaData += "Title: " + meta.Title + Environment.New Line;
MetaData += "Subject: " + meta.Subject + Environment.New Line;
MetaData += "Comment: " + meta.Comment + Environment.New Line;
MetaData += "Date taken: " + meta.DateTaken +
Environment.New Line;
MetaData += "Authors: " + meta.Author + Environment.New Line;
>
/* Image data */
double mpixel = (img.PixelHeigh t * img.PixelWidth) /
(double)1000000 ;
MetaData +="Image Width: "+ img.PixelWidth + "px"+
Environment.New Line;
MetaData +="Image Height: "+ img.PixelHeight + "px"+
Environment.New Line;
MetaData +="Megapixels : " + mpixel + Environment.New Line;
MetaData += "DPI: " + img.DpiX + img.DpiY
+Environment.Ne wLine;
>
// More Metadata
MetaData += "Camera Maker: " + meta.CameraManu facturer +
Environment.New Line;
MetaData += "Camera Model: " + meta.CameraMode l +
Environment.New Line;
MetaData += "Edited in: " + meta.Applicatio nName +
Environment.New Line;
MetaData += "Copyright: " + meta.Copyright +
Environment.New Line;
>
// remove unsafe characters for ajax postback
>
MetaData = MetaData.Replac e ("<","");
MetaData = MetaData.Replac e (">","");
return MetaData ;
>
}
>
>
>
This is the code i have been trying to write the data with out sucess
>
imageFile = "c://users//roger//documents//test.jpg";
bool done = true;
Stream jpgStream = new System.IO.FileS tream(imageFile ,
FileMode.Open, FileAccess.Read Write, FileShare.ReadW rite);
JpegBitmapDecod er jpgDecoder = new
JpegBitmapDecod er(jpgStream,
BitmapCreateOpt ions.PreservePi xelFormat, BitmapCacheOpti on.Default);
BitmapFrame jpgFrame = jpgDecoder.Fram es[0];
InPlaceBitmapMe tadataWriter jpgInplace =
jpgFrame.Create InPlaceBitmapMe tadataWriter();
if (jpgInplace.Try Save() == true)
{
>
jpgInplace.SetQ uery("/Text/Title", "Have a nice day");
}
jpgStream.Close ();
--------------------------------------------------------------------------------------------------------
>
>
"Joy" <Joy@discussion s.microsoft.com wrote in message
news:700B6A65-009D-4080-AB98-F51B85BC5CC7@mi crosoft.com...
Hi Roger,
Can you post the code piece so that i will have more clarity on as to
what
are you trying to do and hence will be more accomplished to give my
inputs
for the same.

regards,
Joy

"Roger" wrote:

Thanks for the link.
>
I have looked there and tried a few examples that i have found oround
the
net.
>
It seems that its all a little sketchy, and i have yet to find any one
who
have got this to work.
>
I have found a c# libray which i am looking into now but it seems that
the
EXIF standard and MS standard are different.
>
If you change the tags in Vista they do not seem to match the EXIF
format.
>
I have spent the weekend looking into this and am able to read tags
with
no
problem at all.
>
Writing to the tags seems a whole different ball game.
>
I will keep trying.
>
Anymore suggestions would be welcome.
>
If I find away to make this work i will post the soloution.
>
Great New group by the way I will try and participate
>
Thanks again for the suggestions
>
Roger
>
"Joy" <Joy@discussion s.microsoft.com wrote in message
news:8A42F91A-C1ED-4594-9CC4-8D6985C73E02@mi crosoft.com...
Hi Roger,
Let me know if the following link was of any help to you:

http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapmetadata.aspx

regards,
Joy

"Roger" wrote:

Hi all
>
I have managed read metadata from an image file using
BitmapMetaData,
and
that works fine,
>
but I am having trouble finding out how to write the information
back
to
the
Image
>
can anyone help with this please
>
Thanks in advance
>
Roger
>
>
>

>

[Roger]

Re: BitmapMetadata

I will have another look,
I will have to read from a directory outside the applicaton as this is being
used as a web application and the image will be uploaded to the server.

Just for information

Also i have discovered that when you read the metadata using the example in
the msdn, that the code apprears to lock the file so you can not access it
to write any data, or delete the file.

I have used this instead

public static string getMetadata(str ing imageFile)
{

string msMetaData = null;


// get windows MetaData
FileStream fs = new FileStream(imag eFile, FileMode.Open,
FileAccess.Read , FileShare.Read) ;
BitmapSource img = BitmapFrame.Cre ate(fs);


BitmapMetadata meta = (BitmapMetadata )img.Metadata;
// MetaData
msMetaData += "Title: " + meta.Title + Environment.New Line;
msMetaData += "Subject: " + meta.Subject + Environment.New Line;
msMetaData += "Comment: " + meta.Comment + Environment.New Line;
msMetaData += "Date taken: " + meta.DateTaken +
Environment.New Line;
msMetaData += "Authors: " + meta.Author + Environment.New Line;

/* Image data */
double mpixel = (img.PixelHeigh t * img.PixelWidth) /
(double)1000000 ;
msMetaData += "Image Width: " + img.PixelWidth + "px" +
Environment.New Line;
msMetaData += "Image Height: " + img.PixelHeight + "px" +
Environment.New Line;
msMetaData += "Megapixels : " + mpixel + Environment.New Line;
msMetaData += "DPI: " + img.DpiX + img.DpiY +
Environment.New Line;

// More Metadata
msMetaData += "Camera Maker: " + meta.CameraManu facturer +
Environment.New Line;
msMetaData += "Camera Model: " + meta.CameraMode l +
Environment.New Line;
msMetaData += "Edited in: " + meta.Applicatio nName +
Environment.New Line;
msMetaData += "Copyright: " + meta.Copyright +
Environment.New Line;

// remove unsafe characters for ajax postback

msMetaData = msMetaData.Repl ace("<", "");
msMetaData = msMetaData.Repl ace(">", "");

fs.Dispose();
return msMetaData;
}

I will let you know how I get on over the weekend.

Roger
"Joy" <Joy@discussion s.microsoft.com wrote in message
news:E00A86A4-59F8-4605-A6DE-CD9071CF2F25@mi crosoft.com...

Hi Roger,
Perhaps i have figured out why is it not working for you when you are
dealing with JPEG file, as in my case it works perfectly even for JPG
file. :)
>
Please do the following:
1. Open the solution explorer.
2. Make sure that the JPG file gets copied to the Bin folder of the
application. This is how you can make sure that: right click the JPG file
in
the solution explorer and click on Properties and then set the following
properties:
a) Build Action - Content
b) Copy to Output Directory - Copy always
>
Please note here that i have also tried the same code with reading the
file
from a location other than the application directory e.g. c:\\smiley.jpg
and
it worked perfectly in that case as well.
>
Please let me know if it worked for you.
>
regards,
Joy
>
"Roger" wrote:
>

>Sorry I Have been away.
>>
>Anyway .net 3.5 and the code you suggested is what i have used except i
>have
>change it from tiff to jpeg
>>
>I have read the skimpy examples the msdn provides.
>>
>Did you try it with a jpeg?
>>
>Thanks
>>
>>
>Roger
>>
>"Joy" <Joy@discussion s.microsoft.com wrote in message
>news:63DB352 F-603C-4658-A09F-F37A1FD39EEE@mi crosoft.com...

Hi Roger,
I tried the code given on MSDN on the following Url:
>

http://msdn.microsoft.com/en-us/library/aa970450.aspx

>
And it was running perfectly for me, so please let me know which
version
of
.NET are you using and also what is the specific error\exception that
you
have been getting.
>
regards,
Joy
>
"Roger" wrote:
>
>Code I have used so far
>>
>This is the class i have for reding the data which works fine
><snip>
>using System.Windows. Media.Imaging;
>using System.IO;
><snip>
>>
> /// <summary>
> /// Returns Image MetaData Preformated in a table
> /// using System.Windows. Media.Imaging (ref)
> /// dot.net 3.5 standard
> ///
> /// </summary>
>>
> public static string returnMetaData( string imgFile)
> {
> string MetaData = null;
>>
>>
>>
>>
> BitmapSource img = BitmapFrame.Cre ate(new Uri(imgFile));
> BitmapMetadata meta = (BitmapMetadata )img.Metadata;
> // MetaData
> MetaData += "Title: " + meta.Title + Environment.New Line;
> MetaData += "Subject: " + meta.Subject +
>Environment.Ne wLine;
> MetaData += "Comment: " + meta.Comment +
>Environment.Ne wLine;
> MetaData += "Date taken: " + meta.DateTaken +
>Environment.Ne wLine;
> MetaData += "Authors: " + meta.Author +
>Environment.Ne wLine;
>>
> /* Image data */
> double mpixel = (img.PixelHeigh t * img.PixelWidth) /
>(double)100000 0;
> MetaData +="Image Width: "+ img.PixelWidth + "px"+
>Environment.Ne wLine;
> MetaData +="Image Height: "+ img.PixelHeight + "px"+
>Environment.Ne wLine;
> MetaData +="Megapixels : " + mpixel + Environment.New Line;
> MetaData += "DPI: " + img.DpiX + img.DpiY
>+Environment.N ewLine;
>>
> // More Metadata
> MetaData += "Camera Maker: " + meta.CameraManu facturer +
>Environment.Ne wLine;
> MetaData += "Camera Model: " + meta.CameraMode l +
>Environment.Ne wLine;
> MetaData += "Edited in: " + meta.Applicatio nName +
>Environment.Ne wLine;
> MetaData += "Copyright: " + meta.Copyright +
>Environment.Ne wLine;
>>
> // remove unsafe characters for ajax postback
>>
> MetaData = MetaData.Replac e ("<","");
> MetaData = MetaData.Replac e (">","");
> return MetaData ;
>>
> }
>>
>>
>>
>This is the code i have been trying to write the data with out sucess
>>
>imageFile = "c://users//roger//documents//test.jpg";
> bool done = true;
> Stream jpgStream = new System.IO.FileS tream(imageFile ,
>FileMode.Ope n, FileAccess.Read Write, FileShare.ReadW rite);
> JpegBitmapDecod er jpgDecoder = new
>JpegBitmapDeco der(jpgStream,
>BitmapCreateOp tions.PreserveP ixelFormat, BitmapCacheOpti on.Default);
> BitmapFrame jpgFrame = jpgDecoder.Fram es[0];
> InPlaceBitmapMe tadataWriter jpgInplace =
>jpgFrame.Creat eInPlaceBitmapM etadataWriter() ;
> if (jpgInplace.Try Save() == true)
> {
>>
> jpgInplace.SetQ uery("/Text/Title", "Have a nice day");
> }
> jpgStream.Close ();
>--------------------------------------------------------------------------------------------------------
>>
>>
>"Joy" <Joy@discussion s.microsoft.com wrote in message
>news:700B6A6 5-009D-4080-AB98-F51B85BC5CC7@mi crosoft.com...
Hi Roger,
Can you post the code piece so that i will have more clarity on as
to
what
are you trying to do and hence will be more accomplished to give my
inputs
for the same.
>
regards,
Joy
>
"Roger" wrote:
>
>Thanks for the link.
>>
>I have looked there and tried a few examples that i have found
>oround
>the
>net.
>>
>It seems that its all a little sketchy, and i have yet to find any
>one
>who
>have got this to work.
>>
>I have found a c# libray which i am looking into now but it seems
>that
>the
>EXIF standard and MS standard are different.
>>
>If you change the tags in Vista they do not seem to match the EXIF
>format.
>>
>I have spent the weekend looking into this and am able to read tags
>with
>no
>problem at all.
>>
>Writing to the tags seems a whole different ball game.
>>
>I will keep trying.
>>
>Anymore suggestions would be welcome.
>>
>If I find away to make this work i will post the soloution.
>>
>Great New group by the way I will try and participate
>>
>Thanks again for the suggestions
>>
>Roger
>>
>"Joy" <Joy@discussion s.microsoft.com wrote in message
>news:8A42F91 A-C1ED-4594-9CC4-8D6985C73E02@mi crosoft.com...
Hi Roger,
Let me know if the following link was of any help to you:
>

http://msdn.microsoft.com/en-us/library/system.windows.media.imaging.bitmapmetadata.aspx

>
regards,
Joy
>
"Roger" wrote:
>
>Hi all
>>
>I have managed read metadata from an image file using
>BitmapMetaData ,
>and
>that works fine,
>>
>but I am having trouble finding out how to write the information
>back
>to
>the
>Image
>>
>can anyone help with this please
>>
>Thanks in advance
>>
>Roger
>>
>>
>>

>>

[Roger]

Re: BitmapMetadata

It may be worth reading this

http://forums.msdn.microsoft.com/en-US/wpf/thread/8f297b11-99ba-459c-b085-1ff3ae526487/

as it looks like this is all a little flawed and un reliable if there is not
enough space in the file, so looks like you have to copy the jpg and rewirte
the whole thing.

Anyway Jay has said it works, I have run it and it does not error but there
are no changes in the data :(


Roger

"Roger" <roger@barretti nteriors.co.ukw rote in message
news:D0C67396-4EF2-4BC9-B161-854ABB05165F@mi crosoft.com...

>I will have another look,
I will have to read from a directory outside the applicaton as this is
being used as a web application and the image will be uploaded to the
server.
>
Just for information
>
Also i have discovered that when you read the metadata using the example
in the msdn, that the code apprears to lock the file so you can not access
it to write any data, or delete the file.
>
I have used this instead
>
public static string getMetadata(str ing imageFile)
{
>
string msMetaData = null;
>
>
// get windows MetaData
FileStream fs = new FileStream(imag eFile, FileMode.Open,
FileAccess.Read , FileShare.Read) ;
BitmapSource img = BitmapFrame.Cre ate(fs);
>
>
BitmapMetadata meta = (BitmapMetadata )img.Metadata;
// MetaData
msMetaData += "Title: " + meta.Title + Environment.New Line;
msMetaData += "Subject: " + meta.Subject + Environment.New Line;
msMetaData += "Comment: " + meta.Comment + Environment.New Line;
msMetaData += "Date taken: " + meta.DateTaken +
Environment.New Line;
msMetaData += "Authors: " + meta.Author + Environment.New Line;
>
/* Image data */
double mpixel = (img.PixelHeigh t * img.PixelWidth) /
(double)1000000 ;
msMetaData += "Image Width: " + img.PixelWidth + "px" +
Environment.New Line;
msMetaData += "Image Height: " + img.PixelHeight + "px" +
Environment.New Line;
msMetaData += "Megapixels : " + mpixel + Environment.New Line;
msMetaData += "DPI: " + img.DpiX + img.DpiY +
Environment.New Line;
>
// More Metadata
msMetaData += "Camera Maker: " + meta.CameraManu facturer +
Environment.New Line;
msMetaData += "Camera Model: " + meta.CameraMode l +
Environment.New Line;
msMetaData += "Edited in: " + meta.Applicatio nName +
Environment.New Line;
msMetaData += "Copyright: " + meta.Copyright +
Environment.New Line;
>
// remove unsafe characters for ajax postback
>
msMetaData = msMetaData.Repl ace("<", "");
msMetaData = msMetaData.Repl ace(">", "");
>
fs.Dispose();
return msMetaData;
}
>
I will let you know how I get on over the weekend.
>
Roger
"Joy" <Joy@discussion s.microsoft.com wrote in message
news:E00A86A4-59F8-4605-A6DE-CD9071CF2F25@mi crosoft.com...

>Hi Roger,
>Perhaps i have figured out why is it not working for you when you are
>dealing with JPEG file, as in my case it works perfectly even for JPG
>file. :)
>>
>Please do the following:
>1. Open the solution explorer.
>2. Make sure that the JPG file gets copied to the Bin folder of the
>application. This is how you can make sure that: right click the JPG file
>in
>the solution explorer and click on Properties and then set the following
>properties:
>a) Build Action - Content
>b) Copy to Output Directory - Copy always
>>
>Please note here that i have also tried the same code with reading the
>file
>from a location other than the application directory e.g. c:\\smiley.jpg
>and
>it worked perfectly in that case as well.
>>
>Please let me know if it worked for you.
>>
>regards,
>Joy
>>
>"Roger" wrote:
>>

>>Sorry I Have been away.
>>>
>>Anyway .net 3.5 and the code you suggested is what i have used except i
>>have
>>change it from tiff to jpeg
>>>
>>I have read the skimpy examples the msdn provides.
>>>
>>Did you try it with a jpeg?
>>>
>>Thanks
>>>
>>>
>>Roger
>>>
>>"Joy" <Joy@discussion s.microsoft.com wrote in message
>>news:63DB35 2F-603C-4658-A09F-F37A1FD39EEE@mi crosoft.com...
>Hi Roger,
>I tried the code given on MSDN on the following Url:
>>
>http://msdn.microsoft.com/en-us/library/aa970450.aspx
>>
>And it was running perfectly for me, so please let me know which
>version
>of
>.NET are you using and also what is the specific error\exception that
>you
>have been getting.
>>
>regards,
>Joy
>>
>"Roger" wrote:
>>
>>Code I have used so far
>>>
>>This is the class i have for reding the data which works fine
>><snip>
>>using System.Windows. Media.Imaging;
>>using System.IO;
>><snip>
>>>
>> /// <summary>
>> /// Returns Image MetaData Preformated in a table
>> /// using System.Windows. Media.Imaging (ref)
>> /// dot.net 3.5 standard
>> ///
>> /// </summary>
>>>
>> public static string returnMetaData( string imgFile)
>> {
>> string MetaData = null;
>>>
>>>
>>>
>>>
>> BitmapSource img = BitmapFrame.Cre ate(new Uri(imgFile));
>> BitmapMetadata meta = (BitmapMetadata )img.Metadata;
>> // MetaData
>> MetaData += "Title: " + meta.Title + Environment.New Line;
>> MetaData += "Subject: " + meta.Subject +
>>Environment.N ewLine;
>> MetaData += "Comment: " + meta.Comment +
>>Environment.N ewLine;
>> MetaData += "Date taken: " + meta.DateTaken +
>>Environment.N ewLine;
>> MetaData += "Authors: " + meta.Author +
>>Environment.N ewLine;
>>>
>> /* Image data */
>> double mpixel = (img.PixelHeigh t * img.PixelWidth) /
>>(double)10000 00;
>> MetaData +="Image Width: "+ img.PixelWidth + "px"+
>>Environment.N ewLine;
>> MetaData +="Image Height: "+ img.PixelHeight + "px"+
>>Environment.N ewLine;
>> MetaData +="Megapixels : " + mpixel +
>>Environment.N ewLine;
>> MetaData += "DPI: " + img.DpiX + img.DpiY
>>+Environment. NewLine;
>>>
>> // More Metadata
>> MetaData += "Camera Maker: " + meta.CameraManu facturer +
>>Environment.N ewLine;
>> MetaData += "Camera Model: " + meta.CameraMode l +
>>Environment.N ewLine;
>> MetaData += "Edited in: " + meta.Applicatio nName +
>>Environment.N ewLine;
>> MetaData += "Copyright: " + meta.Copyright +
>>Environment.N ewLine;
>>>
>> // remove unsafe characters for ajax postback
>>>
>> MetaData = MetaData.Replac e ("<","");
>> MetaData = MetaData.Replac e (">","");
>> return MetaData ;
>>>
>> }
>>>
>>>
>>>
>>This is the code i have been trying to write the data with out sucess
>>>
>>imageFile = "c://users//roger//documents//test.jpg";
>> bool done = true;
>> Stream jpgStream = new System.IO.FileS tream(imageFile ,
>>FileMode.Open , FileAccess.Read Write, FileShare.ReadW rite);
>> JpegBitmapDecod er jpgDecoder = new
>>JpegBitmapDec oder(jpgStream,
>>BitmapCreateO ptions.Preserve PixelFormat, BitmapCacheOpti on.Default);
>> BitmapFrame jpgFrame = jpgDecoder.Fram es[0];
>> InPlaceBitmapMe tadataWriter jpgInplace =
>>jpgFrame.Crea teInPlaceBitmap MetadataWriter( );
>> if (jpgInplace.Try Save() == true)
>> {
>>>
>> jpgInplace.SetQ uery("/Text/Title", "Have a nice
>>day");
>> }
>> jpgStream.Close ();
>>--------------------------------------------------------------------------------------------------------
>>>
>>>
>>"Joy" <Joy@discussion s.microsoft.com wrote in message
>>news:700B6A 65-009D-4080-AB98-F51B85BC5CC7@mi crosoft.com...
>Hi Roger,
>Can you post the code piece so that i will have more clarity on as
>to
>what
>are you trying to do and hence will be more accomplished to give my
>inputs
>for the same.
>>
>regards,
>Joy
>>
>"Roger" wrote:
>>
>>Thanks for the link.
>>>
>>I have looked there and tried a few examples that i have found
>>oround
>>the
>>net.
>>>
>>It seems that its all a little sketchy, and i have yet to find any
>>one
>>who
>>have got this to work.
>>>
>>I have found a c# libray which i am looking into now but it seems
>>that
>>the
>>EXIF standard and MS standard are different.
>>>
>>If you change the tags in Vista they do not seem to match the EXIF
>>format.
>>>
>>I have spent the weekend looking into this and am able to read
>>tags
>>with
>>no
>>problem at all.
>>>
>>Writing to the tags seems a whole different ball game.
>>>
>>I will keep trying.
>>>
>>Anymore suggestions would be welcome.
>>>
>>If I find away to make this work i will post the soloution.
>>>
>>Great New group by the way I will try and participate
>>>
>>Thanks again for the suggestions
>>>
>>Roger
>>>
>>"Joy" <Joy@discussion s.microsoft.com wrote in message
>>news:8A42F9 1A-C1ED-4594-9CC4-8D6985C73E02@mi crosoft.com...
>Hi Roger,
>Let me know if the following link was of any help to you:
>>
>http://msdn.microsoft.com/en-us/libr...pmetadata.aspx
>>
>regards,
>Joy
>>
>"Roger" wrote:
>>
>>Hi all
>>>
>>I have managed read metadata from an image file using
>>BitmapMetaDat a,
>>and
>>that works fine,
>>>
>>but I am having trouble finding out how to write the
>>information
>>back
>>to
>>the
>>Image
>>>
>>can anyone help with this please
>>>
>>Thanks in advance
>>>
>>Roger
>>>
>>>
>>>
>>>

>