ImageData[] Sincerely, Adam P. Goucher

----- Original Message ----- From: James Propp Sent: 02/25/14 07:54 PM To: math-fun Subject: [math-fun] Changing photos into matrices

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