Hi
I am using leadtools .net eval version 16.5.
Using my application i need to
1. Resize the image
2. Read exif data from the original image
3. Write exif data to the resized images. These images i will use in my another application.
I am using .jpeg images. I can able to resize the images, read exif data and write exif data also.
The problem is that ' i cant use my resized images in my another applocation in asp.net'. Its not showing in my
image controls like <asp:image.
Actually the problem arised after writing the exif data. So the problem is in write exif data.
For writing exif data i used the code :
RasterCodecs.Startup();
RasterCodecs codecs = new RasterCodecs();
codecs.ThrowExceptionsOnInvalidImages = true;
// Load the image
RasterImage image = codecs.Load(destFileName);
codecs.Save(image, destFileName, RasterImageFormat.Tif, 24);
image.Dispose();
// Write some comments to the existing tif file
RasterCommentMetadata comment = new RasterCommentMetadata();
if (Program.exifDate != DefaultDT)
{
comment.Type = RasterCommentMetadataType.DateTime;
comment.FromAscii(Program.exifDate.ToString());
codecs.WriteComment(destFileName, 1, comment);
}
RasterMetadataRational[] rationalsWrite = new RasterMetadataRational[3];
if (Program.exifLatitude.Length == 3)
{
comment.Type = RasterCommentMetadataType.GpsLatitude;
for (int i = 0; i < rationalsWrite.Length; i++)
{
rationalsWrite[i] = Program.exifLatitude[i];
}
comment.FromRational(rationalsWrite);
codecs.WriteComment(destFileName, 1, comment);
}
if (Program.exifLongtitude.Length == 3)
{
comment.Type = RasterCommentMetadataType.GpsLongitude;
rationalsWrite = new RasterMetadataRational[3];
for (int i = 0; i < rationalsWrite.Length; i++)
{
rationalsWrite[i] = Program.exifLongtitude[i];
}
comment.FromRational(rationalsWrite);
codecs.WriteComment(destFileName, 1, comment);
}
if (Program.exifElevation != string.Empty)
{
comment.Type = RasterCommentMetadataType.GpsSatellites;
comment.FromAscii(Program.exifElevation);
codecs.WriteComment(destFileName, 1, comment);
}
Here we are saving the images to destination file in RasterImageFormat.Tif format.
And then writing the exif data. Once its done, from here after i cant load the image using image tool from asp.net application.
I tried to save the image back to jpeg format, then the image is loading to asp:image control but the written exif data got missed.
I tried to write exif data to the jpeg image using RasterImageFormat.Jpeg format then i am getting the
error "JPEG marker is missing".
Actually i am in delema. I want a solution to move further.
Thanks in advance.
Thanks & Regards
Sony A N