使用双线性插值将图像放大ReferenceError: katex is not defined倍吧!
双线性插值考察ReferenceError: katex is not defined邻域的像素点,并根据距离设置权值。虽然计算量增大使得处理时间变长,但是可以有效抑制画质劣化。
- 放大后图像的座标ReferenceError: katex is not defined除以放大率ReferenceError: katex is not defined,可以得到对应原图像的座标ReferenceError: katex is not defined。
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求原图像的座标ReferenceError: katex is not defined周围ReferenceError: katex is not defined邻域的座标ReferenceError: katex is not defined,ReferenceError: katex is not defined,ReferenceError: katex is not defined,ReferenceError: katex is not defined:
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分别求这4个点与ReferenceError: katex is not defined的距离,根据距离设置权重:ReferenceError: katex is not defined
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根据下式求得放大后图像ReferenceError: katex is not defined处的像素值:
ReferenceError: katex is not defined
python实现:
c++实现:
输入:
输出: