从图像中检测肤色 [英] Detect skin tone from an image

问题描述

我正在尝试开发一个应用程序，一旦提供图像，该应用程序将检测面部的颜色.我能够从OpenCV中找到人脸检测算法并将其集成.但是，我找不到任何可以检测到脸部颜色的示例或界面.

I am trying to develop an application which will detect the color of the face once an image is provided. I was able to find out the face detection algorithm from OpenCV and integrate it. However I could not find any example or interface by which I can detect the color of the face.

我有我要介绍的逻辑.请让我知道是否有可用的功能，或者是否需要为此编写单独的功能?

I have the logic which I am presenting. Please let me know if there is anything available for this or do I need to write the separate function for this?

逻辑:在给定的图像区域中，找到大部分在给定的颜色细节中重复的颜色细节.我已经检查了直方图，不确定是否会有帮助.

Logic: in the given image area, find the color detail which is repeated mostly in the given. I have gone through the histogram and not sure how it will be of help.

任何帮助将不胜感激.

推荐答案

直方图表示图像中给定颜色的像素数量.

The histogram represents the amount of pixels of a given color which are in the image.

例如，假设您有3x3的图片:

For example, lets say you have this 3x3 image:

3 4 3 1 1 1 2 2 1

3 4 3 1 1 1 2 2 1

直方图将是: 数:4 2 2 1 颜色:1 2 3 4

The histogram would be: count: 4 2 2 1 color: 1 2 3 4

您将因此发现最多的颜色是颜色1.总结出非常相似的颜色可能也很有意义.

from this you would have that the color which is found most is the color 1. It probably also would make sense to sum up very similar color.

例如使用count(2)= sum(hist(1)，hist(2)，hist(3)); (记录该颜色的像素数)

For example use count(2) = sum(hist(1), hist(2), hist(3)); (being hist the number of pixels in that color)

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