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请问为什么不直接只用相关性匹配的接口呢 #32

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Liao-lin opened this issue Mar 20, 2023 · 4 comments
Open

请问为什么不直接只用相关性匹配的接口呢 #32

Liao-lin opened this issue Mar 20, 2023 · 4 comments

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@Liao-lin
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Liao-lin commented Mar 20, 2023 •
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请问matchTemplate为什么不直接使用CV_TM_CCORR_NORMED或者CV_TM_CCOEFF_NORMED而是使用的CV_TM_CCORR然后再自己CCOEFF_Denominator计算得分呢，是因为opencv自带的归一化互相关速度太慢吗还是别的原因呢
@Liao-lin Liao-lin changed the title 为什么不直接只用相关性匹配的接口呢 请问为什么不直接只用相关性匹配的接口呢 Mar 20, 2023
@DennisLiu1993
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分開寫才能用SIMD優化CV_TM_CCORR

@Liao-lin
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Liao-lin commented Apr 3, 2023

好的，谢谢

@ershat-dl
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@DennisLiu1993 TM_CCORR 后 使用 CCOEFF的归一化操作的目的 除了 使用 SIMD 之外 还有别的原因吗？
我让模板图像旋转，并带上掩码匹配时 找不到了。 这里该如何解决好？

@ershat-dl
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如果 TM_CCORR 带上掩码，是不是对CCOEFF_Denominator方法里增加掩码的操作？
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@Liao-lin @ershat-dl @DennisLiu1993