本來這個blog是記錄開發輸入法的點滴的,後來越來越雜,現在什麼都記錄了。

2014年8月27日 星期三

How to do perspective transformation in GIMP?

How to do perspective transformation in GIMP?

  • Download script-fu perspective-transform-to-rectangle.scm.
  • Save it in C:\Program Files\GIMP 2\share\gimp\2.0\scripts (or where you installed GIMP 2)
  • Refresh the script by going to Menu Filters -> Script-Fu -> Refresh Script
  • A new menu item "Script-Fu" and "Perspective Transform to rectangle"
  • Open a new picture that requires perspective transform
  • Open Toolbox: File: Windows -> Toolbox
  • Select the Path tool. Double Click to open "Tool options". Select "Polygonal" in "Tool options".
  • Draw a 3-sided path (4 dots).
    Press "Selection from Path" to help checking whether the 3-sided path enclosed the area required.
    The Path must be started with Top Left, then Top Right, then Bottom Right and then Bottom Left.
    You may use Ctrl + mouse scroll to zoom in.
  • Do the transformation: Menu "Script-Fu" -> Transform -> Perspective Transform to rectangle.
    Note the dialog box fired up.


    Press OK.
  • Here is the result:
Source of information: http://w3studi.informatik.uni-stuttgart.de/~zimmerla/allyourbandwidth/perspective-transform-to-rectangle.scm