About Lesson
In this Python OpenCV lesson we are going to learn about Python OpenCV Converting Color Spaces, basically in this lesson we want to learn that how you can convert one color to another color in OpenCV, so there are more than 150 color-space conversion methods available in OpenCV. but we will look into only some of them which are most widely used ones like BGR↔Gray and BGR↔HSV.
So this is the complete code for this lesson.
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import cv2 img1 = cv2.imread("lena.tif") bgrgra = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY) bgrhsv = cv2.cvtColor(img1, cv2.COLOR_BGR2HSV) brightlab = cv2.cvtColor(img1, cv2.COLOR_BGR2LAB) cv2.imshow("Original Image", img1) cv2.imshow("BGR To Gray", bgrgra) cv2.imshow("BGR To HSV", bgrhsv) cv2.imshow("Bright To Labl", brightlab) cv2.waitKey(0) cv2.destroyAllWindows() |
For color space changing we can use cv2.cvtColor(), you need to give the image that you want to change and also the type of color space, so we have used BGR2GRAY, BGR2HSV, BGR2LAB.
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bgrgra = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY) bgrhsv = cv2.cvtColor(img1, cv2.COLOR_BGR2HSV) brightlab = cv2.cvtColor(img1, cv2.COLOR_BGR2LAB) |
Now run the complete code and this will be the result.
