Projection

Histogram Backprojection in OpenCV?

Histogram Backprojection in OpenCV?
  1. What is back projection in image processing?
  2. What is histogram projection?

What is back projection in image processing?

Back Projection is a way of recording how well the pixels of a given image fit the distribution of pixels in a histogram model. To make it simpler: For Back Projection, you calculate the histogram model of a feature and then use it to find this feature in an image.

What is histogram projection?

The projection histogram is the method that uses the image projection in a established direction, for example, in a vertical or horizontal direction.

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