This may be called "Region of Interest" I'm not exactly sure. But, what I'd like to do is rather easy to explain.
I have a photo that I need to align to a grid.
https://snag.gy/YaAWdg.jpg
For starters; the little text that says "here" must be 151px from the top of the screen.
Next; from "here" to position 8 of the chin must be 631px
Finally; a straight line down the middle of the picture at line 28 on the nose must be done.
If i'm not making sense please tell me to elaborate.
I have the following ideas (this is pseudo code)
It is simply to loop until the requirements are met with a resize function, a lot like brute forcing but thats all i can think of..
i.e..
while (top.x,y = 151,0)
img.top-=1 ## this puts the image one pixel above until reaching the desired positioning
while (top.x,y & eight.x,y != 631)
resize += 1 # resize by 1 pixel until the height is reached
## center the nose
image.position = nose.