Syntax:bool Imagick::colorMatrixImage (array $color_matrix = Imagick::CHANNEL_DEFAULT)
Parameters:This function takes one parameter,
$color_matrix,which is used to store a 5x5 matrix for RGBA with rows denoting red, green, blue, alpha output, and columns - red, green, blue, alpha input, while the last row and columns to adjust brightness. In a 6x6 matrix for CMYKA, where rows represent cyan, magenta, yellow, tonal or black, alpha output, and columns - cyan, magenta, yellow, tonal or black, alpha input and alpha to adjust brightness similarly in RGBA, CMYKA also has last row and columns to adjust brightness.
Return value: this function returns True on success and returns False on error.The following program illustrates the Imagick::colorMatrixImage() function in PHP:Program:
// 6x6 color matrix for CMYKA $colorMatrix = [ 1.5 , 0.0, 0.0, 0.0, 0.0, -0.157, 0.0, 0.0, 0.5, 0.0, 0 .0, -0.157, 0.0, 0.0, 0.0, 0.0, 0.5, -0.157 , 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 0.5, 0.0, 1.0 ];
// Create Imagick object $imagick = new Imagick ( ’ https://cdncontribute.engineerforengineer.org/wp-content/uploads/engineerforengineer-13.png ’ ) ;
// Set the opacity of the image $imagick -> evaluateImage ( Imagick::EVALUATE_MULTIPLY, 0.6, Imagick::CHANNEL_ALPHA );
// Create a new Imagick object $background = new Imagick();
// Create a new pseudo image with a hexagon pattern $background -> newPseudoImage ( $imagick -> getImageWidth(), $imagick -> getImageHeight(), "pattern: hexagons");
// Set image format $background -> setImageFormat ( ’png’ ); $imagick -> setImageFormat ( ’png’ );
// Use the Imagick function::colorMatrixImage() $imagick -> colorMatrixImage ( $colorMatrix );
// Use the Imagick function::composite image() $background -> compositeImage ( $imagick , Imagick::COMPOSITE_SRCATOP, 0, 0 ); header ( " Content-Type: image / png " );
// Display the output image echo $background -> getImageBlob();
?> Output: Link: https://www.php.net/manual/en/imagick.colormatriximage.php
