Bilinear Interpolation

Reconstruction of an RGB image.

Description

In digital photography the red, green and blue values are not sampled at the same position. We can use demosaicing to reconstruct a "regular" RGB image.

This program is using bilinear interpolation for the reconstruction.

• Required Products: Image Processing Toolbox
• MATLAB release: MATLAB 6.5 (R13)

[Paul Lee]

Bi-linear interpolation is the most primitive demosaicing algorithm. Educational use is fine, but it is not suitable for high-end image processing.

[Marcelo Soto Thompson]

Basic but efficient function! A similar function is part of the Image Acquisition Toolbox (which I haven't tried)

Just add a ";" to the line "R = R + R1 + R2
" or you'll end upp waiting forever. ;-)

Also, for larger images you might want to clear variables (im, B1, B2, R1, R2) along the function to avoid the omnipresent "Out of memory" errors.

[Marcelo Soto Thompson]

Basic but efficient function! A similar function is part of the Image Acquisition Toolbox (which I haven't tried)

Just add a ";" to the line "R = R + R1 + R2"
or you'll end upp waiting forever. ;-)

Also, for larger images you might want to clear variables (im, B1, B2, R1, R2) along the function to avoid the omnipresent "Out of memory" errors.

[jac ren]

fine

[Tom Shih]

Thanks very much

[Jason JUEHAO]

Thanks very much!
That will give me a great help to understand bilinear interpolation algorithm!
Keep moving!

[Pratik Mehta]

its good enough for understanding

[FEI GUO]

this code really helped me a lot~~Thx~