Legacy ImageMagick Discussions Archive

For example, of the edge pixels, I found the minima and maxima red values.

Ok, but did you do that with IM or with an other language?

Well, sorry I think this is beyound my knowledge in image processing...

A working example could help me, how did you get tango_FUZZ and tango_MID?

Phew, I finished the first step: distorting the picture by looking for corners as you suggested: #!/bin/sh # creating the mask convert original.jpg -fuzz 25% -fill None -floodfill +0+0 '#0a613e' -alpha extract -morphology Open Disk -resize 200 mask.png # creating corner pitures convert -size 4x4 xc ...

What is your IM version and platform? Syntax differs. Ubuntu, IM v6.8.9 Thanks a lot for your responses! I think I prefer the version with $color. :-) It does, but "-scale 1x1!" also does, and is quicker. Ok! Just an other related question: You used -format "%[pixel:u.p{0,0}]" info:) to format the ...

If on Unix, you could try my script unperspective at the link below Wow, wonderful script, congrats! :-) I applied unperspective , the book looks better :-) ./unperspective -f 5 -V output.png stretched.png http://i.imgur.com/9EdBM1u.png I will try -morphology on my mask and -distort depolar tonight ...

As explained in a previous post , I extracted a mask from a photo: convert original.jpg -fuzz 25% -fill None -floodfill +0+0 '#0a613e' -alpha extract -morphology Open Disk mask.png Note here I use the color #0a613e , which I picked using Gimp. Now I would like to automatically detect the background ...

1. Find the four corners. Ok, I can do this with IM? How? So to use your module, I use http://im.snibgo.com/sh2sh.htm#sh2shLinear.bat (which I should rewrite I think, because I use Linux) and then do something like: sh2shLinear.bat sh2shLinear output.png mask.png h 75 r stretched.png 0 that's right?

How to change png file parameter IHDR width using imageshack I suppose you mean using imagemagick You can use extent to change the image width without altering the image, and set the background to white: convert kXhet.png -background white -extent 384x42 output.png result: http://i.imgur.com ...

Hello, I digitalized several big books with a camera (~1000 photos), using a green background. I would like to make them more readable. Original photos looks like this (this is an example, not the real books, which are much bigger) : http://i.imgur.com/v7Yrn5k.png I first extracted a mask ...