/// <summary>
/// Converts Aurigma.GraphicsMill.Bitmap to System.Drawing.Bitmap and vice versa preserving metadata
/// </summary>
private static void PreserveColorProfileAndMetadata()
{
// Imagine that you have a legacy application which works with System.Drawing.Bitmap,
// and you want to integrate it with Graphics Mill, and you want to preserve metadata and color profile
using (var reader = new Aurigma.GraphicsMill.Codecs.JpegReader("../../../../_Input/Copenhagen_RGB.jpg"))
using (var gmBitmap1 = reader.Frames[0].GetBitmap())
// To convert Aurigma's bitmap to System.Drawing.Bitmap, just cast it
using (var sdBitmap = (System.Drawing.Bitmap)gmBitmap1)
{
// Here we modify System.Drawing.Bitmap
ApplyWatermark(sdBitmap);
// To copy pixels, just cast your System.Drawing.Bitmap to Aurigma.GraphicsMill.Bitmap.
using (var gmBitmap2 = (Aurigma.GraphicsMill.Bitmap)sdBitmap)
{
// Copy color profile
gmBitmap2.ColorProfile = gmBitmap1.ColorProfile;
using (var writer = new Aurigma.GraphicsMill.Codecs.JpegWriter("../../../../_Output/PreserveColorProfileAndMetadata.jpg"))
{
// Copy metadata
writer.Exif = reader.Exif;
writer.Iptc = reader.Iptc;
writer.Xmp = reader.Xmp;
writer.AdobeResources = reader.AdobeResources;
Aurigma.GraphicsMill.Pipeline.Run(gmBitmap2 + writer);
}
}
}
}
/// <summary>
/// Loads non-RGB image with Aurigma.GraphicsMill.Bitmap, pass it to System.Drawing.Bitmap and
/// convert it back to Aurigma.GraphicsMill.Bitmap.
/// </summary>
private static void ProcessNonRgb()
{
// Imagine that you have a legacy application which works with System.Drawing.Bitmap,
// and you need to work with non-RGB images. You should convert it to RGB with Graphics Mill, cast it
// to System.Drawing.Bitmap and convert back.
using (var reader = new Aurigma.GraphicsMill.Codecs.JpegReader("../../../../_Input/Copenhagen_CMYK.jpg"))
using (var gmBitmap1 = reader.Frames[0].GetBitmap())
{
Aurigma.GraphicsMill.Bitmap rgbGmBitmap = null;
try
{
// Convert a non-RGB image to the RGB color space with the sRGB color profile
if (!gmBitmap1.PixelFormat.IsRgb)
{
rgbGmBitmap = new Aurigma.GraphicsMill.Bitmap(gmBitmap1);
rgbGmBitmap.ColorManagement.DestinationProfile = Aurigma.GraphicsMill.ColorProfile.FromSrgb();
rgbGmBitmap.ColorManagement.Convert(Aurigma.GraphicsMill.PixelFormat.Format24bppRgb);
}
using (var sdBitmap = (System.Drawing.Bitmap)(gmBitmap1.PixelFormat.IsRgb ? gmBitmap1 : rgbGmBitmap))
{
// Here we modify System.Drawing.Bitmap
ApplyWatermark(sdBitmap);
using (var gmBitmap2 = (Aurigma.GraphicsMill.Bitmap)sdBitmap)
{
// Convert an RGB image to the source color space (CMYK, grayscale, or Lab)
if (!gmBitmap1.PixelFormat.IsRgb)
{
gmBitmap2.ColorProfile = Aurigma.GraphicsMill.ColorProfile.FromSrgb();
gmBitmap2.ColorManagement.DestinationProfile = gmBitmap1.ColorProfile;
gmBitmap2.ColorManagement.Convert(gmBitmap1.PixelFormat);
}
// Copy color profile
gmBitmap2.ColorProfile = gmBitmap1.ColorProfile;
using (var writer = new Aurigma.GraphicsMill.Codecs.JpegWriter("../../../../_Output/ProcessNonRgb.jpg"))
{
// Copy metadata
writer.Exif = reader.Exif;
writer.Iptc = reader.Iptc;
writer.Xmp = reader.Xmp;
writer.AdobeResources = reader.AdobeResources;
Aurigma.GraphicsMill.Pipeline.Run(gmBitmap2 + writer);
}
}
}
}
finally
{
if (rgbGmBitmap != null)
{
rgbGmBitmap.Dispose();
}
}
}
}
private static Aurigma.GraphicsMill.Bitmap ExtractExifThumbnail(Aurigma.GraphicsMill.Codecs.ImageReader reader, int width, int height)
{
Aurigma.GraphicsMill.Codecs.ExifDictionary exif = null;
Aurigma.GraphicsMill.Bitmap result = null;
try
{
Aurigma.GraphicsMill.Codecs.JpegReader jpgReader = reader as Aurigma.GraphicsMill.Codecs.JpegReader;
if (jpgReader != null)
{
exif = jpgReader.Exif;
}
else
{
Aurigma.GraphicsMill.Codecs.TiffReader tiffReader = reader as Aurigma.GraphicsMill.Codecs.TiffReader;
if (tiffReader != null)
{
exif = tiffReader.Exif;
}
else
{
Aurigma.GraphicsMill.Codecs.Psd.PsdReader psdReader = reader as Aurigma.GraphicsMill.Codecs.Psd.PsdReader;
if (psdReader != null)
{
exif = psdReader.Exif;
}
}
}
if (exif != null && exif.Contains(Aurigma.GraphicsMill.Codecs.ExifDictionary.Thumbnail))
{
Aurigma.GraphicsMill.Bitmap exifThumbnail = (Aurigma.GraphicsMill.Bitmap)exif[Aurigma.GraphicsMill.Codecs.ExifDictionary.Thumbnail];
if (exifThumbnail.Width >= width || exifThumbnail.Height >= height)
{
exifThumbnail.Transforms.Resize(width, height, Transforms.ResizeInterpolationMode.High, Aurigma.GraphicsMill.Transforms.ResizeMode.Shrink);
result = exifThumbnail;
}
else
{
exifThumbnail.Dispose();
}
}
}
catch
{
if (exif != null)
{
exif.Dispose();
}
exif = null;
result = null;
}
return(result);
}
