 | 1 | initial version |
Hello, I'm very new to openCV. My question is: I need to enhance contrast of an IR image. I tried to use the cvEqualizeHist C function and the equalizeHist C++ function, but I understood they both work on 8 bit data, whilst my pixel data (one channel) are 16 bit (CV_16UC1). Is it possible to improve contrast in my image in some other way? Thanks a lot Andrea
| | 2 | No.2 Revision |
Hello, I'm very new to openCV. My question is: I need to enhance contrast of an IR image. I tried to use the cvEqualizeHist C function and the equalizeHist C++ function, but I understood they both work on 8 bit data, whilst my pixel data (one channel) are 16 bit (CV_16UC1). Is it possible to improve contrast in my image in some other way? Thanks a lot Andrea
Thanks a lot, I followed the suggestion but still I've some problems. The source matrix had all values in a very small interval (so the results was an almost gray image). I expected that after applying the normalize function, the values were scaled between the min and max, but the result was similar to the source matrix: the values are still in a very small interval (shifted at a higher value respect the original matrix); the result is a similar image but a little bit brighter. Where am I wrong?
| | 3 | No.3 Revision |
Hello, I'm very new to openCV. OpenCV. My question is: I need to enhance contrast of an IR image. I tried to use the cvEqualizeHist cvEqualizeHist C function and the equalizeHist equalizeHist C++ function, but I understood they both work on 8 bit data, whilst my pixel data (one channel) are 16 bit (CV_16UC1).
(CV_16UC1).
Is it possible to improve contrast in my image in some other way?
Thanks a lot
Andrea
Update: Thanks a lot, I followed the suggestion but still I've some problems. The source matrix had all values in a very small interval (so the results was an almost gray image). I expected that after applying the normalize normalize function, the values were scaled between the min and max, but the result was similar to the source matrix: the values are still in a very small interval (shifted at a higher value respect the original matrix); the result is a similar image but a little bit brighter.
Where am I wrong?
| | 4 | No.4 Revision |
Hello, I'm very new to OpenCV. My question is: I need to enhance contrast of an IR image. I tried to use the cvEqualizeHist C function and the equalizeHist C++ function, but I understood they both work on 8 bit data, whilst my pixel data (one channel) are 16 bit (CV_16UC1).
Is it possible to improve contrast in my image in some other way?
Thanks a lot
Andrea
Update:
Thanks a lot, I followed the suggestion but still I've some problems. The source matrix had all values in a very small interval (so the results was an almost gray image). I expected that after applying the normalize function, the values were scaled between the min and max, but the result was similar to the source matrix: the values are still in a very small interval (shifted at a higher value respect the original matrix); the result is a similar image but a little bit brighter.
Where am I wrong?
