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September 2009
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2009.09.15 22:48 "Re: JPEG images from Dwights sample code", by Kevin Myers
Brings up an interesting point regarding test images: All test images should probably be accompanied by a text description that provides some details regarding what the image is *supposed* to look like. Otherwise, it may not be apparent to someone testing their application whether the image is being displayed correctly or not. I don't know whether such descriptions have been typically supplied or not... ----- Original Message ----- From: "Dwight Kelly" <dkelly@apago.com> To: "Richard Nolde" <richard.nolde@cybox.com> Cc: <tiff@lists.maptools.org> Sent: Tuesday, September 15, 2009 17:19 Subject: Re: [Tiff] JPEG images from Dwights sample code > Richard Nolde wrote: >> Dwight, >> When I build the test file generator and run it with the CVS head >> version of libtiff from a couple of weeks ago on Fedora 11, I get >> alternating stripes of black and white bands on all the images. >> However, the order of the bands is Black White Black White for all BUT >> the Jpeg compressed images, and in those two the order is White Black >> White Black when viewed with GraphicsMagic-1.3.6 2009-07-25-Q16. >> >> However, Gthumb (Gnome Image Viewer), Gimp 2.6, and Geggie display all >> the non-RGB images Black White Black White and all the RGB images >> White Black White Black. Which is correct? > > Hello, monochrome and grayscale will be opposite than RGB. > > -- > Dwight Kelly > Apago, Inc. 4080 McGinnis Ferry Rd Suite 601 Alpharetta, GA 30005 > voice:(770) 619-1884 fax:(770) 619-1885 > email: dkelly@apago.com web: http://www.apago.com > > _______________________________________________ > Tiff mailing list: Tiff@lists.maptools.org > http://lists.maptools.org/mailman/listinfo/tiff > http://www.remotesensing.org/libtiff/