V2EX 有做图像处理的同学吗？写了个 SLIC 超像素分割算法+OpenCV2 的类，简单易用~
answer42 · 2015-03-06 15:00:03 +08:00 · 4998 次点击这是一个创建于 3556 天前的主题，其中的信息可能已经有所发展或是发生改变。
代码
github链接：np-csu/SLIC-superpixel
Class explanation
void SLIC::GenerateSuperpixels(cv::Mat& img, UINT numSuperpixels)Perform SLIC algorithm on the given image with the given number of superpixels.
cv::Mat SLIC::GetImgWithContours(cv::Scalar color)Get the result image with contours on the given color.
int* SLIC::GetLabel()Get label on each pixel which shows the number of superpixel it belongs to.
Example
original image
200 superpixels
500 superpixels
第 1 条附言 · 2015-03-06 16:24:00 +08:00
## 增加了参数说明
* `void SLIC::GenerateSuperpixels(cv::Mat& img, UINT numSuperpixels)`
Perform SLIC algorithm on the given image with the given number of superpixels.
`img` - 24-bit or 8-bit cv::Mat
`numSuperpixels` - an appropriate number, no more than total number of pixels
* `cv::Mat SLIC::GetImgWithContours(cv::Scalar color)`
Get the result image with contours on the given color.
`color` - If input image is 24-bit, the color may be cv::Scalar(255, 0, 0) or cv::Scalar(0, 255, 0) or cv::Scalar(0, 0, 255).
If input image is 8-bit, the color may be cv::Scalar(0) or cv::Scalar(128) or cv::Scalar(255)
* `void SLIC::GenerateSuperpixels(cv::Mat& img, UINT numSuperpixels)`
Perform SLIC algorithm on the given image with the given number of superpixels.
`img` - 24-bit or 8-bit cv::Mat
`numSuperpixels` - an appropriate number, no more than total number of pixels
* `cv::Mat SLIC::GetImgWithContours(cv::Scalar color)`
Get the result image with contours on the given color.
`color` - If input image is 24-bit, the color may be cv::Scalar(255, 0, 0) or cv::Scalar(0, 255, 0) or cv::Scalar(0, 0, 255).
If input image is 8-bit, the color may be cv::Scalar(0) or cv::Scalar(128) or cv::Scalar(255)
23 条回复 • 2015-03-08 10:36:24 +08:00
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ooxxcc 2015-03-06 15:12:45 +08:00
颜色空间转换可以直接用opencv内部的吧……
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zerh925 2015-03-06 17:01:54 +08:00
如果是边缘没有这么明显的图片呢
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ooxxcc 2015-03-06 17:06:41 +08:00
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answer42 OP @ooxxcc 是的，OpenCV自带一些颜色空间转换的函数，针对的是Mat格式。SLIC类中所带的转换函数针对的是unsigned int格式。
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answer42 OP |
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ooxxcc 2015-03-06 17:39:28 +08:00
@answer42 转一下就好……
C++: Mat::Mat(Size size, int type, void* data, size_t step=AUTO_STEP) opencv自带的一些函数有各种优化，一般我都直接用，就不自己造轮子了。。 |
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Valyrian 2015-03-06 18:15:43 +08:00
computer vision课作业写过。。。
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ooxxcc 2015-03-06 18:17:05 +08:00
cv相关专业但是不知道为啥一直在做嵌入式学术上一事无成的飘过。。
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theoractice 2015-03-06 19:51:39 +08:00
看起来很好玩。想问下这个有啥应用呢？
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shakoon 2015-03-06 20:34:02 +08:00
看着很不错呢，楼主加油！
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jimmy66 2015-03-06 21:18:05 +08:00
这学期在学，先star了
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answer42 OP |
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answer42 OP |
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ywisax 2015-03-07 15:44:21 +08:00
必须star，太牛了
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answer42 OP |
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