problem of image processing

[montu3377]

Hi, This is problem about Image processing. let me describe whole situation. We are working on project of image processing(talking about OMR). In that image there are multiple answers and we have to find out which answer is marked and which is not marked out of four answers and for that we are doing recognisation(OMR). Here marked answers are in pencil colors. In this project we are using colored image(one image is having one color) and from that colored image we are filtering particular color by drawing rectanlge on one color and that color should be dropped out from the whole image so after that filtering we can get good results of marked answers. For filtering the colors we had made one algorithm which find out what is MinR,MaxR,MinG,MaxG,MinB,MaxB of that rectangle for which u are dropping colors. Now problem is that,while finding out Min. values of R,G,B we are getting values of Pencil colors also into that Min. R,G,B (although we had selected color like purple,in that purple color some pencil colors are also there ) and if i am tring to removing from Min. to Max range of those selected rectangle color then pencil colors are also removing so marked answers are also removed and due to that recognisation is not doing properly. I hope you understand the problem. Pls. help me out. Thanks in advance. montu3377

[Guffa]

No, I don't really understand the problem. What are the "colored images"? Are you separating the image into RGB colour channels? Where are you drawing the rectangle? What do you mean by dropping a color? What are the minimum and maximum values for? How are they calculated? --- b { font-weight: normal; }