Howtosignalprocessing
Which interpolation method is best for image?
If you are enlarging the image, you should prefer to use INTER_LINEAR or INTER_CUBIC interpolation. If you are shrinking the image, you should prefer to use INTER_AREA interpolation. Cubic interpolation is computationally more complex, and hence slower than linear interpolation.
What is bilinear interpolation used for?
In computer vision and image processing, bilinear interpolation is used to resample images and textures. An algorithm is used to map a screen pixel location to a corresponding point on the texture map. A weighted average of the attributes (color, transparency, etc.)
