hi there, I am having some strange problems with opencv. I have a program written in C# which I converted to C and then I linked it with opencv. The C# version uses the native C# image loading libraries to read images and my C version uses imread from opencv 3 beta. However the output of the two programs are slightly different. After days of debugging I found out the source of the problem is the fact that the pixel values are different as read by imread in OPENCV and as read by C#. I printed a sample of these pixel values: (the pixels are RGBA and each row represents a single byte, so four rows would be one pixel):
byte C# opencv diff
0 116 116 0
1 120 120 0
2 114 114 0
3 255 255 0
4 114 114 0
5 118 118 0
6 112 112 0
7 255 255 0
8 115 116 -1
9 119 120 -1
10 113 114 -1
11 255 255 0
12 119 120 -1
13 123 124 -1
14 117 118 -1
15 255 255 0
16 121 122 -1
17 125 126 -1
18 119 120 -1
19 255 255 0
20 119 119 0
21 123 123 0
22 117 117 0
23 255 255 0
24 119 120 -1
25 123 124 -1
26 117 118 -1
27 255 255 0
28 122 123 -1
29 126 127 -1
30 120 121 -1
31 255 255 0
32 125 125 0
33 129 129 0
34 123 123 0
35 255 255 0
36 120 119 1
37 124 123 1
38 118 117 1
39 255 255 0
40 119 120 -1
41 123 124 -1
42 117 118 -1
43 255 255 0
44 122 122 0
45 126 126 0
46 120 120 0
47 255 255 0
Please let me know if you have any idea why this is happening.
Thank you for your time, J