hello,how can i convert a gray level image to a binary image?

converting grau image to bainary

Answer 1

[Kuifeng]

    doc im2bw

Answer 2

[Image Analyst]

You can threshold at some gray level, like 154 or whatever

binaryImage = grayScaleImage > 154;

Take a look at my Image Segmentation Tutorial. It goes through the whole image segmentation process. http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862