file type (should be 0x4d42): 4d42
file size: 18874422
offset to image data: 54
header size: 40
width: 3072
height: 2048
planes: 1
bits: 24
load time:   0.0162
1 threads, invert time:   0.0808
2 threads, invert time:   0.0405
3 threads, invert time:   0.0269
4 threads, invert time:   0.0206
5 threads, invert time:   0.0164
6 threads, invert time:   0.0148
7 threads, invert time:   0.0131
8 threads, invert time:   0.0117
9 threads, invert time:   0.0105
10 threads, invert time:   0.0096
11 threads, invert time:   0.0096
12 threads, invert time:   0.0083
13 threads, invert time:   0.0081
14 threads, invert time:   0.0074
15 threads, invert time:   0.0075
16 threads, invert time:   0.0069
17 threads, invert time:   0.0082
18 threads, invert time:   0.0078
19 threads, invert time:   0.0091
20 threads, invert time:   0.0086
21 threads, invert time:   0.0072
22 threads, invert time:   0.0081
23 threads, invert time:   0.0068
24 threads, invert time:   0.0104
25 threads, invert time:   0.0076
26 threads, invert time:   0.0082
27 threads, invert time:   0.0065
28 threads, invert time:   0.0102
29 threads, invert time:   0.0073
30 threads, invert time:   0.0065
save time:   0.0001