输入: 81aa-icapxph6774222.jpg
模式: RGB  尺寸: (2048, 1382)
参数: is_sig=True height_cm=1 noise=0 rotate=[0,0] dpi=96
阈值: alpha>30  亮度<210  二值化>128  白底>240
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[00] original           size=(2048, 1382)   alpha=100.0%  dark=  4.1%  content=  4.1%  bbox=(0, 0, 1743, 1374)
[01] binarized          size=(2048, 1382)   alpha=100.0%  dark=  3.9%  content=  3.9%  bbox=(0, 0, 1686, 1222)
[02] white_removed      size=(2048, 1382)   alpha=  3.9%  dark=  3.9%  content=  3.9%  bbox=(0, 0, 1686, 1222)
[03] border_cropped     size=(1686, 1222)   alpha=  5.4%  dark=  5.4%  content=  5.4%  bbox=(0, 0, 1686, 1222)
[04] scaled             size=(51, 37)       alpha= 12.8%  dark=100.0%  content= 12.8%  bbox=(13, 17, 51, 36)
[05] noised             SKIPPED
[06] rotated            SKIPPED
[07] final_cropped      size=(38, 19)       alpha= 33.4%  dark=100.0%  content= 33.4%  bbox=(0, 0, 38, 19)
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最终输出: final.png  size=(38, 19)