License Plate Detection without Machine Learning
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A grayscale (or graylevel) image is simply one in which the only colors are shades of gray. Grayscale images are very common and entirely sufficient for many tasks such as face detection and so there is no need to use more complicated and harder-to-process color images.
There are two methods to convert to grayscale from the RGB/BGR colorspace. Both has their own merits and demerits. The methods are: Average method and Weighted method . You are invited to take a look at the Tutorialpoint page for additional information on the RGB/BGR to Grayscale colorspace conversion.
The gist nearby load a target image from disk (Video capture is omitted for simplicity) and convert the input image to the grayscale colorspace.
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