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双线性插值和数学理论公式差别大 #137

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Ichiruchan opened this issue Jul 11, 2024 · 2 comments
Open

双线性插值和数学理论公式差别大 #137

Ichiruchan opened this issue Jul 11, 2024 · 2 comments

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@Ichiruchan
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我保存了c++和py在双线性插值后的图片，发现预测图片实际有所偏差
image
，目标点（122，147）根据数学公式算出核心点应该是（121.30397727272727，138.20738636363635），而在kernel中
image
w我输出了结果，
image
在填充方向y上有较大的误差，对于x方向的误差为scale在python和c++的精度不同，在pose模型上没有太大问题，但是在我写的obb的部署中发现预测结果有较大误差
@Ichiruchan Ichiruchan changed the title 双线性插值和数学理论公式差别过大 双线性插值和数学理论公式差别大 Jul 11, 2024
@Ichiruchan
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Ichiruchan commented Jul 12, 2024 •
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目前我是自己重新写了一下坐标转换，目前和python的resize结果最多差3个像素值

@Ichiruchan
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目前我是自己重新写了一下坐标转换，目前和python的resize结果最多差3个像素值

更新，看了opencv的源码改写完后只有边界部分有1个像素值的误差

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@Ichiruchan