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Re: Draw::DrawImageOp optimization bug [message #19470 is a reply to message #19456]

Fri, 05 December 2008 11:05

Tom1
Messages: 1216
Registered: March 2007

Senior Contributor

Mirek,

Thank you for the latest fixes. I have tested with all my real printers with success using both dots and native mode. Now, I will also involve my client with the Epson printer to verify the results on that particular hardware. I would not expect any trouble on that, as the preview is OK.

With Microsoft XPS Document Writer + Viewer, there is still horizontal lines if the image gets even partly optimized. Over-painting the image segments does not help. (This can be seen if the Testcase image (O) is drawn with red on white instead of red on blue.) I assume this happens because the XPS Viewer smooths the image and the intensity at the edge of each colored image segment is lower than the pixel color due to smoothing. Therefore, each new stripe paints a narrow line with lighter color.

I suppose, the RLE optimization of images is just impossible with XPS but luckily appears to work well for real printers after the 'optimize-white-only' -change. I guess, there is just the 'disable RLE optimization' -flag left as an option to survive printing to XPS.

Overall, the changes have improved the printing sub-system compatibility and printing quality. Especially the native mode has been an extremely welcome feature.

Thanks and regards,

Tom

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[Message index]

		Draw::DrawImageOp optimization bug By: Tom1 on Thu, 27 November 2008 13:52
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 28 November 2008 08:56
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Fri, 28 November 2008 10:23
		Re: Draw::DrawImageOp optimization bug By: rylek on Fri, 28 November 2008 13:15
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 28 November 2008 13:27
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 28 November 2008 13:29
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Fri, 28 November 2008 13:54
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 28 November 2008 14:27
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 28 November 2008 21:02
		Re: Draw::DrawImageOp optimization bug By: mirek on Sat, 29 November 2008 12:54
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Mon, 01 December 2008 11:25
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 12:12
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Mon, 01 December 2008 12:49
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 12:57
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Mon, 01 December 2008 13:50
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 14:25
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 13:12
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 12:41
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 13:14
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Mon, 01 December 2008 14:37
		Re: Draw::DrawImageOp optimization bug By: mirek on Mon, 01 December 2008 14:52
		Re: Draw::DrawImageOp optimization bug By: mirek on Tue, 02 December 2008 19:15
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Tue, 02 December 2008 21:16
		Re: Draw::DrawImageOp optimization bug By: mirek on Tue, 02 December 2008 21:46
		Re: Draw::DrawImageOp optimization bug By: mirek on Wed, 03 December 2008 12:14
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Wed, 03 December 2008 15:03
		Re: Draw::DrawImageOp optimization bug By: mirek on Wed, 03 December 2008 15:21
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Wed, 03 December 2008 15:36
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Wed, 03 December 2008 17:11
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 10:22
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Thu, 04 December 2008 11:07
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 11:36
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Thu, 04 December 2008 12:09
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 12:36
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Thu, 04 December 2008 13:09
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 15:53
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Thu, 04 December 2008 16:07
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 17:46
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Fri, 05 December 2008 11:05
		Re: Draw::DrawImageOp optimization bug By: mirek on Fri, 05 December 2008 11:20
		Re: Draw::DrawImageOp optimization bug By: Tom1 on Fri, 05 December 2008 12:13
		Re: Draw::DrawImageOp optimization bug By: mirek on Thu, 04 December 2008 10:19

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