Hi,
I used usb_cam driver to publish a camera raw image, and I'm trying to crop the published image using image_proc/crop_decimate. when I viewed the output of image_proc/crop_decimate, I did not see any difference between the original image and the cropped image. it seems that the image_proc/crop_decimate node is bypassing the parameters of my launch file.
the size of the original image 640x480 and I want to crop the image to 640x300
This is my launch file script:
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