Help with Image Cropping

[Brm]

Hi, I'm very new to PHP development I and was hoping someone here could help me.

I'm trying to crop the middle part of a tall (or wide) picture in to a square. My picture looks like this:

I'd like to crop it's middle in to a square like this:

Sadly, my pictures end up looking like this:

Here's my PHP code that I am using:

if($OriginalHeight > $OriginalWidth){
   $StartY = $OriginalHeight / 4;
   $StartX = 0;
   $EndY = $StartY * 3;
   $EndX = $OriginalWidth;
}


if($OriginalHeight < $OriginalWidth){
   $StartY = 0;
   $StartX = $OriginalWidth / 4;
   $EndY = $OriginalHeight;
   $EndX = $StartX * 3;
}


if($OriginalHeight == $OriginalWidth){
   $StartY = 0;
   $StartX = $OriginalWidth;
   $EndY = $OriginalHeight;
   $EndX = $OriginalHeight;
}

imagecopyresampled($NewImage, $SrcImage, $EndX, $EndY, $StartX, $StartY, $NewImageSize, $NewImageSize, $OriginalWidth, $OriginalHeight);

Please can you help me? Thank you.

[Weedpacket]

For a start, if you want the copied portion of the source image start at the top-left corner of the destination image, the destination X and Y coordinates would both need to be 0....

[cretaceous]

@weed - he doesn't want it to start 0,0!

@op : you're on the right track but work out your square size (prior to scaling) and subtract half the difference between full size and square - looks like you are dividing by 4 - divide by 2 - to get you're starting x or y
Note : one of the x or y start values should be 0
Also use 'floor' or 'round' on your divisions to get round number integers.

[NogDog]

cretaceous;11033459 wrote:

@weed - he doesn't want it to start 0,0!
...

He does in the destination image. 😉

[cretaceous]

Fair point! 🙂

[shawn802]

I thought your energy is positively bursting out of you today,its shining bright light and positivist on everyone which will encounter.