Image Processing & hardware control

[saudyonline]

i ask about how to compare two pictures by using its pixels in array
and what related classes and methods for it

also what that classes that related to control hardware such as scanner to scan pictures from scanner

thank you for your answer
:confused:

[pareshgh]

if you have 2 images then you can compair pixel by pixel checking its color. but if those sizes are different then it would mean that
1) images are same
2) images are different.

by 1) I mean that pictures (original) may be same but the canvas behind it may be different.

2) can happen frequently with different sizes of bitmap which is fair straightforward.

for scanner and all you will need to study the device drivers. USB or Printer ports handling would be a great start to look for examples for that.

Paresh