digitize.m

A function which interactively digitizes data from an image file.

Description

TA function which interactively digitizes data from an image file.

- X-Y axis scales can be any combination of linear, log.
- Automatic compensation for angular misalignment of image with
  respect to screen axes.
- Supports images in any MATLAB-compatible format

Tested under MATLAB 5.3.1

• MATLAB release: MATLAB 5.3.1 (R11.1)

[Sandra Martinka]

Thanks for the tool. It's very usefull. I had to add commas on line 115 to get it work under R13 and the IO could be better, but it's nice that it adjust for misallignment of the axes and will handle log or linear axes.

[Chris Patscheck]

Pretty good little program. A bit slow to do by hand for complex waveforms, but good to have around. Might look into automatic digitalization on some interval.

[Brett Ables]

In response to the comment about adding commas to line 115... all it needs is a space before "numberformat" for the character array to be correct. Of course, commas would work as well. The new line 113 would read:

         fprintf(fname,['%4.0f ' numberformat ' ' numberformat '\n'],i,xpt(i),ypt(i))