Drawing on an image in Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg126361] Drawing on an image in Mathematica*From*: Julian Francis <julian.w.francis at gmail.com>*Date*: Thu, 3 May 2012 22:23:49 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

Dear all, I have a binary image in which I'd like to use the mouse to draw (freehand) on top of the image, and use this in Mathematica. Presently, I can import the image into a painting program, use its sketching facilities, then cut and paste into Mathematica. I can extract the matrix if I wish by using ImageData. Is there a way of drawing on the image directly in Mathematica to save me cutting and pasting between programs? I've worked out how to create a graphic and draw into it using the Mathematica graphics drwaing tools, but my problem is either the graphic is far too large, or if I shrink it down (I want to work on matrices 16x16), the resulting picture is far too small. I want to draw into a matrix 16x16, but it be large enough for me to see easily. Thanks, Julian.

**Follow-Ups**:**Re: Drawing on an image in Mathematica***From:*Murray Eisenberg <murray@math.umass.edu>