Also I'm not sure about Photoshop but Paint shop Pro used to allow you to save in "raw" format - this just let you specify the image format (resolution etc) and would save it out from the source based on the output format you specify as a ".raw" file of straight rectangular pixels i.e. no header etc. so to reproduce you'd have to remember the source format (res and pixel format) yourself. On 25 Feb 2014, at 19:54, James Propp wrote:
Does anyone know a way to turn black and white jpeg images into rectangular arrays of pixel-by-pixel grayscale levels?
My Mac has Adobe Photoshop CS6 and Mathematica, but I can't figure out a way to get either of them to do it.
The reason I want to do this has to do with this year's Gathering for Gardner, so I believe it (just barely) qualifies as a math-fun topic.
Jim Propp _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun
The meaning and purpose of life is to give life purpose and meaning. The instigation of violence indicates a lack of spirituality.