php imagecopyresized vs imagecopyresampled vs imagecopy pros/cons

Question

These all seem to do the same thing. What are the pros/cons of each.

imagecopyresized() vs imagecopyresampled() vs imagecopy().

I'm resizing a user submitted image.

So I have an image shell created with '$newImage=imagecreatetruecolor(250, 250)'.

And now I want to copy the orginal image into the '$newImage'

Ahmad Baktash Hayeri · Accepted Answer · 2023-12-08 10:03:27Z

117

imagecopyresized will copy and scale and image. This uses a fairly primitive algorithm that tends to yield more pixelated results.

imagecopyresampled will copy and scale and image, it uses a smoothing and pixel interpolating algorithm that will generally yield much better results than imagecopyresized at the cost of a little cpu usage.

imagecopy will copy but will not scale the image.

edited Dec 8, 2023 at 10:03

Ahmad Baktash Hayeri

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answered Aug 1, 2013 at 21:37

Orangepill

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