如何在Matlab2016b中设置hsv彩色图像的色调和饱和度值

。如何在matlab 2016b中设置hsv彩色图像的色调和饱和度值这里的主要问题是，您的范围是在范围

uint8

（范围[0，255]）中定义的，

rgb2hsv

结果是范围[0，1]中的两倍

您可以乘以255将范围[0,1]转换为[0,255]

使用

min

和

max

功能可以简单地限制范围

以下是一个正在工作的exmaple：

RGB_Color = imread('peppers.png');  %Read sample image.

hsvImage = rgb2hsv(RGB_Color);

%Convert HSV from range [0, 1] to range [0, 255]
hsvImage = hsvImage*255;

H = hsvImage(:,:,1); 
S = hsvImage(:,:,2); 
V = hsvImage(:,:,3);

%1. Hue value must be in the range between 10 to 40
H = max(min(H, 40), 10);

%2. saturation value(100–255)
S = max(min(S, 255), 100);


%Convert back to RGB
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
hsvImage = cat(3, H, S, V);

%Convert HSV from range [0, 255] to range [0, 1].
hsvImage = hsvImage / 255;

rgbImage = hsv2rgb(hsvImage);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%Display result
figure;imshow(RGB_Color);title('Original RGB image');
figure;imshow(rgbImage);title('RGB after HSV thresholding');

原始RGB图像：

HSV阈值化后的RGB: