Image Blending/ Image Fusion

Do you know about this formula??

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=2&cad=rja&ved=0CDQQFjAB&url=http%3A%2F%2Fwww.imgfsr.com%2Fifsr_ImageFusion.pdf&ei=wEIxUsHKKo_jrAeek4FQ&usg=AFQjCNGAHkPjkHlpr10xUNerv0qHiVxdUQ&sig2=2aXMMnpc_Qx5LPl0hnthew&bvm=bv.52109249,d.bmk

i want to ask about "x,y" in G(x,y), please explain to me about this step, thank you

Answer 1

[Jan]

The linked file is a PDF with 17 slides. My virus scanner did not find malware in the file, but the last security announcement of Adobe is just some hours old: http://www.adobe.com/support/security/bulletins/apsb13-22.html . I recommend to remove this link and post the formula directly.

Reading the slides I find:

 Assuming than (x_i, y_i) represents the coordinates of the i.th block, ...

In consequence I assume, that "x,y" means the coordinates of the blocks.

Answer 2

[Riri]

Thanks for your answer, but i want to implement that on matlab, and the output is not similar like the slide :(

Answer 3

[Image Analyst]

It's covered by the FAQ: http://matlab.wikia.com/wiki/FAQ#Can_you_program_up_the_algorithm_in_this_article_for_me_and_explain_it_to_me.3F. Though if all you want is the definition of x,y, it's right there on slide 8:

"Assuming (xi,yi) represents the coordinates of the center of the ith block,...."

That pretty well explains it. Then G is just a Gaussian centered at that point, and the neighbor points.