PHP get image RGB Color value example, _php tutorial

PHP Gets an example of an image RGB color value,

PHP get image RGB Color Value example

Many image sites will retrieve the primary color value of the image based on the images uploaded by the user, and then search for related images by color.

Before using the online method to zoom (or mosaic) the image and then traverse each pixel, and then statistics the most RGB number of values, this practice is too low and the RGB value is not accurate. It was later found that the Quantizeimage method using Imagick can easily fetch the average RGB value in the image.

$average=NewImagick ("Xiaocai.jpg");$average->quantizeimage (Imagick::colorspace_rgb, 0,false,false );$average-uniqueimagecolors ();functionGetimagescolor (Imagick$im ){$colorarr=Array();$it=$im-getpixeliterator ();$it-resetiterator (); while($row=$it-Getnextiteratorrow ()) {foreach($row  as $pixel) {//www.jbxue.com$colorarr[] =$pixel-GetColor ();}}return $colorarr;}$colorarr= Getimagescolor ($average);foreach($colorarr  as $val){Echo"$val[' R ']},{$val[' G ']},{$val[' B ']}); Width:50px;height:50px;float:left; ' > ";} 

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