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In an image preprocessing experiment, the cv2.imread("lena.png", 1) function provided by OpenCV is used to read images. The parameter "1" in this function represents a --------- -channel image. (Fill in the blank with a number.)
Correct Answer:
3 Explanation: In OpenCV: * cv2.imread(filename, 1) reads the image incolor mode. * This loads the image as a3-channelBGR image (Blue, Green, Red). * Other modes: 0 for grayscale, -1 for unchanged (including alpha channel). Exact Extract from HCIP-AI EI Developer V2.5: "When the second parameter of cv2.imread is 1, the image is read in color mode, resulting in a 3-channel BGR image." Reference:HCIP-AI EI Developer V2.5 Official Study Guide - Chapter: Image Reading and Writing with OpenCV