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------- Additional comments from ke...@openoffice.org Tue Feb 10 20:34:52 +0000 2009 ------- The problem is not that the bilinear filter is not adequate, but that Impress fails to apply it correctly! To illustrate what I mean, I loaded norbert2's high-resolution original (demod.png) in Gimp and scaled it by a similar amount as in his screenshots using the bilinear filter. See demod_gimp_bilinear.png in attachment. While norbert2's demod_msppt.png looks slightly prettier (probably because of ppt using a more advanced filter), my demod_gimp_bilinear.png is quite acceptable; it's a day and night difference with norbert2's demod_oooimp.png . The current behavior of OOo is intolerable to me, while proper bilinear scaling would be quite satisfactory. I would recommend fixing the bilinear filter ASAP rather than wasting time on introducing a more advanced one. As a side note, those more advanced filters have specific weaknesses; while they generally do a better job in high-contrast images, they often induce artifacts in low-contrast ones. Bilinear is prefect in its simplicity - it just makes all images slightly blurry, as if one would apply a Gaussian blur with a 1 pixel radius. --------------------------------------------------------------------- Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@framework.openoffice.org For additional commands, e-mail: issues-h...@framework.openoffice.org --------------------------------------------------------------------- To unsubscribe, e-mail: allbugs-unsubscr...@openoffice.org For additional commands, e-mail: allbugs-h...@openoffice.org