[Python知识库]Programming Computer Vision with Python (Chapter 10 OpenCV)

Programming Computer Vision with Python (Chapter 10 OpenCV)

涉及函数

1、integral()函数

2、floodFill()函数

3、pyrDown()函数

4、SURF()函数

理解问题

1、

After reading the image and converting to grayscale the function integral() creates an image where the value at each pixel is the sum of the intensities above and to the left.
读取图像之后并转换为灰度图后，integral()函数创造了一幅图像（图像的每个像素值是从上到左强度值的总和）。

2、

Here the function floodFill() takes the image (grayscale or color), a mask
with non-zero pixels indicating areas not to be filled, a seed pixel, the new color value to replace the flooded pixels together with lower and upper difference thresholds to accept new pixels.
洪泛法函数需要一幅灰度图或者彩色图，
一个使用非零像素指出不应该被填充的区域的掩模、
一个种子像素、
用来替换被洪水冲过像素的新颜色值，与上下插值阈值接收新像素。