image-processing

问题 I have been trying to read some barcodes from images uzing Python and pyzbar. Unfortunately, the images are taken from several feet away under several constraints and I cannot move or zoom the camera any closer. Is it possible to read barcodes this blurry using any existing Python libraries? So far I've tried some preprocessing including thresholding, sharpening, applying a vertical closing filter, and Wiener filtering, but none seem to help. I am probably asking for a miracle, but if you

问题 I'm working on a face detection project and want to know if opencv provides support for heic format in imread() and imwrite() methods? Can an image be read using cv2's imread() and written using cv2.imwrite() functions? (Language being used: Python3.6) 来源： https://stackoverflow.com/questions/60951161/does-opencv-support-heic-image-format

问题 I have been using PIL Image I am trying to draw text on an image. I want this text to have a black outline like most memes. I've attempted to do this by drawing a shadow letter of a bigger font behind the letter in front. I've adjusted the x and y postions of the shadow accordingly. The shadow is slightly off though. The letter in front should be exactly in the middle of the shadow letter, but this isn't the case. The question mark certainly isn't centered horizontally, and all the letters

问题 I have a binary image [0,1]. I want to use Python to find the edge of the image. I have tried sobel method on the binary but it provides a bad result. I expect the output like the image 回答1: The best way is to apply a 1-pixel morphological erosion, then take the difference between the input image and the result. In pseudo-code: edges = image - erosion(image) 来源： https://stackoverflow.com/questions/54134295/what-is-the-method-for-edge-detection-of-a-binary-image-in-python

问题 I have a binary image [0,1]. I want to use Python to find the edge of the image. I have tried sobel method on the binary but it provides a bad result. I expect the output like the image 回答1: The best way is to apply a 1-pixel morphological erosion, then take the difference between the input image and the result. In pseudo-code: edges = image - erosion(image) 来源： https://stackoverflow.com/questions/54134295/what-is-the-method-for-edge-detection-of-a-binary-image-in-python

问题 I have a binary image [0,1]. I want to use Python to find the edge of the image. I have tried sobel method on the binary but it provides a bad result. I expect the output like the image 回答1: The best way is to apply a 1-pixel morphological erosion, then take the difference between the input image and the result. In pseudo-code: edges = image - erosion(image) 来源： https://stackoverflow.com/questions/54134295/what-is-the-method-for-edge-detection-of-a-binary-image-in-python

问题 I have a binary image [0,1]. I want to use Python to find the edge of the image. I have tried sobel method on the binary but it provides a bad result. I expect the output like the image 回答1: The best way is to apply a 1-pixel morphological erosion, then take the difference between the input image and the result. In pseudo-code: edges = image - erosion(image) 来源： https://stackoverflow.com/questions/54134295/what-is-the-method-for-edge-detection-of-a-binary-image-in-python

问题 I have a binary image [0,1]. I want to use Python to find the edge of the image. I have tried sobel method on the binary but it provides a bad result. I expect the output like the image 回答1: The best way is to apply a 1-pixel morphological erosion, then take the difference between the input image and the result. In pseudo-code: edges = image - erosion(image) 来源： https://stackoverflow.com/questions/54134295/what-is-the-method-for-edge-detection-of-a-binary-image-in-python

问题 I have a binary image [0,1]. I want to use Python to find the edge of the image. I have tried sobel method on the binary but it provides a bad result. I expect the output like the image 回答1: The best way is to apply a 1-pixel morphological erosion, then take the difference between the input image and the result. In pseudo-code: edges = image - erosion(image) 来源： https://stackoverflow.com/questions/54134295/what-is-the-method-for-edge-detection-of-a-binary-image-in-python

问题 I have a binary image [0,1]. I want to use Python to find the edge of the image. I have tried sobel method on the binary but it provides a bad result. I expect the output like the image 回答1: The best way is to apply a 1-pixel morphological erosion, then take the difference between the input image and the result. In pseudo-code: edges = image - erosion(image) 来源： https://stackoverflow.com/questions/54134295/what-is-the-method-for-edge-detection-of-a-binary-image-in-python