Hello, I would like to have my CMYK image fade out to black. I used the example
in paragraph 10.2.1 of " iText in Action - second edition"On the screen it
looks ok, but when printed I there is some color mismatch on a specific part of
the image. I was wondering if this could be caused by the fact that the mask
(as used in the example) is using a DeviceRGB ? I modified the code as follows,
but then I receive a "this image can not be an image mask" exception:
byte[] gradient = new byte[imageWidth * 4]; //using 4 bytes per pixel
because of CMYK has 4 components ??
for (int i = 0; i < imageWidth; lcv++)
{
gradient[i * 4] = 255; //fading to black, so the cyan
part not to be masked ?
gradient[i * 4 + 1] = 255; //fading to black, so the magenta
part not to be masked ?
gradient[i * 4 + 2] = 255; //fading to black, so the yellow
part not to be masked ?
gradient[i * 4 + 3] = (byte)(255 * (imageWidth - 1 - lcv) /
(imageWidth - 1)); //fading to black
}
Image result = Image.GetInstance(gradient.Length, 1, 4, 8,
gradient); //4, 8, gradient);
result.MakeMask();
PS: as you can see I'm using iText# Thanks !
------------------------------------------------------------------------------
BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA
The must-attend event for mobile developers. Connect with experts.
Get tools for creating Super Apps. See the latest technologies.
Sessions, hands-on labs, demos & much more. Register early & save!
http://p.sf.net/sfu/rim-blackberry-1
_______________________________________________
iText-questions mailing list
iText-questions@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/itext-questions
iText(R) is a registered trademark of 1T3XT BVBA.
Many questions posted to this list can (and will) be answered with a reference
to the iText book: http://www.itextpdf.com/book/
Please check the keywords list before you ask for examples:
http://itextpdf.com/themes/keywords.php
