[Mono-bugs] [Bug 506179] unable to set different quality when saving JPEG images using Bitmap object

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Mon Sep 20 06:13:47 EDT 2010



--- Comment #2 from Juraj Skripsky <juraj at hotfeet.ch> 2010-09-20 10:13:45 UTC ---
Created an attachment (id=390445)
 --> (http://bugzilla.novell.com/attachment.cgi?id=390445)
another test case

The attached test case loads an existing JPG (included) and saves it with
different quality settings (0, 10, ..., 100):

mono jpeq_quality.exe waterdrop.jpg test.jpg

The resulting files all share the same size and ImageMagick/GraphicsMagick
always reports quality 75:

for jpg in test.jpg*; do gm identify -format "%[JPEG-Quality]" $jpg; done

(use "identify" instead of "gm identify" if using ImageMagick)

I'm using Mono 2.6.4 (x86_64) on Fedora 13.

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