I = Image.open('./pic/lena.png') L = I.convert('L') L.show() 1. 2. 3. 4. 效果: 二、将彩色图像转为HSV、HSI格式 1. 转HSV HSV 格式: H 代表色彩,S 代表颜色的深浅,V 代表着颜色的明暗程度。 HSV 颜色空间可以很好地把颜色信息和亮度信息分开,将它们放在不同的通道中,减小了光线对于特...
< convert RGB/BGR to CIE Luv, @ref color_convert_rgb_luv "color conversions" COLOR_RGB2Luv=51, COLOR_BGR2HLS=52,//!< convert RGB/BGR to HLS (hue lightness saturation), @ref color_convert_rgb_hls "color conversions" COLOR_RGB2HLS=53, COLOR_HSV2BGR=54,//!< backward conversions to...
Converts a BGR image to HSV colorspace @param bgr image to be converted @return Returns bgr converted to a 3-channel, 32-bit HSV image with S and V values in the range [0,1] and H value in the range [0,360] */ IplImage* bgr2hsv( IplImage* bgr ) { IplImage* bgr32f, * h...
15 Converts a BGR image to HSV colorspace 16 17 @param bgr image to be converted 18 19 @return Returns bgr converted to a 3-channel, 32-bit HSV image with 20 S and V values in the range [0,1] and H value in the range [0,360] 21 */ 22 IplImage* bgr2hsv( IplImage* bgr ...
void convertTo(Mat dst, int type) Mat clone() int channels() int depth() bool empty(); uchar* ptr(i = 0) 4. 图像操作 (1) 读写像素 读写一个GRAY灰度图像(CV_8UC1) int gray = gray_src.at<uchar>(row, col);//at获取(row, col)位置的像素值 ...
img.convertTo(img32, CV_32F,1/255.0,0); Mat HSV, HSV32; cvtColor(img, HSV, COLOR_BGR2HSV); cvtColor(img32, HSV32, COLOR_BGR2HSV); Mat gray0, gray1; cvtColor(img, gray0, COLOR_BGR2GRAY);//BGR和RGB的区别cvtColor(img, gray1, COLOR_RGB2GRAY);return0; ...
这里举一段opencv颜色识别用的代码(识别的是蓝色) import cv2 import numpy as np cap = cv2.VideoCapture(0) while(1): # Take each frame _, frame = cap.read() # Convert BGR to HSV hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV) # define range of blue color in HSV lower_blue = np.arr...
(info.height, info.width, CV_8UC4, pixels);Mat image32;image.convertTo(image32,CV_32F,1/255,0);Mat HSV;cvtColor(image,HSV,COLOR_BGR2HSV);Mat gray;cvtColor(image,gray,COLOR_BGR2GRAY);imwrite("/sdcard/DCIM/gray.jpg",gray);//保存图像到手机相册imwrite("/sdcard/DCIM/HSV.jpg",HSV);...
# Convert BGR to HSV hsv = cv.cvtColor(frame, cv.COLOR_BGR2HSV) # define range of color in HSV lower_red = np.array([150, 50, 50]) upper_red = np.array([179, 255, 255]) lower_green = np.array([35, 50, 50]) upper_green = np.array([77, 255, 255]) ...
将图像转为HSV 要将图像转换为HSV,我们可以使用函数cvtColor,这里我们将cv2.COLOR_BGR2HSV作为参数传递。它主要用于对象跟踪。 imgGray = cv2.cvtColor(IMG,cv2.CODE) IMG: Original image CODE: Conversion codeforGray(COLOR_BGR2HSV) Example imgHsv = cv2.cvtColor(img,cv2.COL...