How to multiply a gray scale image with matrix to get image according to these points?

Its like writing your own imwrap function.

Answer 1

[Image Analyst]

According to what points? See Steve's in-depth blog about spatial transforms: http://blogs.mathworks.com/steve/2006/08/04/spatial-transformations-defining-and-applying-custom-transforms/

[Muneef]

According to the matrix 3 by 3

[Muneef]

i am trying to multiply a matrix with a image to get a new image and new image has the original image warped according to the eight parameters. eight parameter are those which i am giving in matrix.

[Image Analyst]

OK -- good luck.