A workaround is to install tesseract on your PC.
The workflow in Matlab is to print the image you want to run OCR to a .tif (.jpg works too), do a system call to tesseract, then read its output into matlab.
For example:
imwrite(im,'image.tif');
system('tesseract image.tif res');
a = importdata('res.txt');
you may want to use textscan instead of importdata....
