OpenCV Qt删除小blob(OpenCV Qt Remove small blobs)

OpenCV Qt删除小blob(OpenCV Qt Remove small blobs)

我需要删除图像上的所有blob，但不能这样做。 我尝试了许多阈值操作，但没有任何帮助。 我正在使用OpenCV和Qt（C ++）。 例：

cv::adaptiveThreshold(input, output, 125, ADAPTIVE_THRESH_GAUSSIAN_C, THRESH_BINARY_INV, 13, 25);

输入输出：

I need to remove all blobs at image, but cannot do it. I tried many thresholding operations, but nothing helps. I'm using OpenCV and Qt (C++). Example:

cv::adaptiveThreshold(input, output, 125, ADAPTIVE_THRESH_GAUSSIAN_C, THRESH_BINARY_INV, 13, 25);

Input/Output:

最满意答案

好像你喜欢黑客攻击:)

我建议你试试一些Blob Detection算法......看看这个链接 。 然后，您可以按区域过滤blob。

形态学操作也可以改善图像。

It seems you're like hacking something :)

I suggest you try with some Blob Detection algorithm... give a look to this link. Then you can filter blobs by area for example.

Also morphological operations can improve the image.