How can I made an thumbnail for a large picture with PHP?
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How can I made an thumbnail for a large picture with PHP?
Use the imagecreate function to create a GD2 image resource, imagecreatefromX to load the original image, and imagecopyresized to resize and draw the resized image to the target resource that you created.
If the image is a photo, you may wish to apply sharpening following the resize. You can use the imageconvolution function to apply a convolution matrix to effect the sharpening.
Unsharp Mask for PHP