[magick-users] RE: Auto alignment of shifted images

[Fred Weinhaus]

Hello Johnson,

I am by no means an IM expert, but IM has two functions that might help

-distort SRC  that allows you to specify a scale, offset and rotation 
to align two images

-distort Affine that allows you to specify 2 sets of 3 corresponding 
points from the images

see

http://www.imagemagick.org/Usage/distorts/#distort

Fred Weinhaus
____________________________________________



>Dear All,
>
>I have two images.
>One is a blank questionnaire : http://www.comminn.net/ftp/a.jpg
>Another one is a completed questionnaire: http://www.comminn.net/ftp/b.jpg
>I have a program which could help me to enter the data automatically.
>However, as you can see, b.jpg is slightly shifted and not completely
>match a.jpg, and the data entry software could not tolerate. Since I
>have thousands of such questionnaires, and they have different type of
>slight shifting and rotation, I need a solution which could help me
>align all images automatically. I would like to know if ImageMagick or
>any other software could do this? Thanks very much!
>
>Regards,
>
>Johnson Lau
>