Merges a sequence of images.

/*
$im = new Imagick($input);
$top = new Imagick('newPseudoImage.jpg');
$im->compositeImage($top, Imagick::COMPOSITE_SCREEN, 0, 0 );
$im = $im->flattenImages(); 
$im->writeImage('flattenImages.jpg'); 
$im->destroy();
*/

( This is useful for combining Photoshop layers into a single image. NOT WORKING )

Creates a vertical mirror image by reflecting the pixels around the central x-axis.

$im = new Imagick($input);
$im->flipImage( );
$im->writeImage('flipImage.jpg'); 
$im->destroy();

Changes the color value of any pixel that matches target and is an immediate neighbor.

$im = new Imagick($input);
$im->floodfillPaintImage("Orange", 10, '#850d0f', 115, 42, FALSE);
$im->writeImage("floodfillpaint.jpg"); 
$im->destroy();

( This method is a replacement for deprecated Imagick::paintFloodFillImage().
NOT WORKING )

Creates a horizontal mirror image by reflecting the pixels around the central y-axis.

$im = new Imagick($input);
$im->flopImage( );
$im->writeImage('flopImage.jpg'); 
$im->destroy();

Adds a simulated three-dimensional border around the image.

$im = new Imagick($input);
$im->frameImage( Black, 10, 10, 5, 5 );
$im->writeImage('frameImage.jpg'); 
$im->destroy();

( The width and height specify the border width of the vertical and horizontal sides of the frame. The inner and outer bevels indicate the width of the inner and outer shadows of the frame. )

Applies an arithmetic, relational, or logical expression to an image.

/*
$im->functionImage ( Imagick::FUNCTION_POLYNOMIAL, array( 4, -4, 1 ) );
*/

( Use these operators to create lighter or darker versions of an image, to increase or decrease contrast in an image, or to negate the image colors. )

Evaluate expression for each pixel in the image.

( Consult the Fx Special Effects Image Operator for more information. )

Gamma-corrects an image.

$im = new Imagick($input);
$im->gammaImage( 2, imagick::CHANNEL_RED );
$im->writeImage('gammaImage.jpg'); 
$im->destroy();

( The same image viewed on different devices will have perceptual differences in the way the image's intensities are represented on the screen. Specify individual gamma levels for the red, green, and blue channels, or adjust all three with the gamma parameter. Values typically range from 0.8 to 2.3.
God knows how thw channel selection is supposed to work! )

Blurs an image.

$im = new Imagick($input);
$im->gaussianBlurImage( 2, 3 );
$im->writeImage('gaussianBlurImage.jpg'); 
$im->destroy();

( We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, the radius should be larger than sigma. Use a radius of 0 and selects a suitable radius for you. )

Returns the color of the ImagickPixel object as a string.

$im = new Imagick($input);
$pixel = $im->getImagePixelColor( 78, 22 );
echo '
Get the color as a string: '.($pixel->getColorAsString());
$im->destroy();

Returns the color count associated with this color.

$im = new Imagick($input);
$pixel = $im->getImagePixelColor( 78, 22 );
echo '
Color count: '.$pixel->getColorCount();
$im->destroy();

Retrieves the value of the color channel specified, as a floating-point number between 0 and 1.

$im = new Imagick($input);
$pixel = $im->getImagePixelColor( 78, 22 );
echo '
Alpha: '.$pixel->getColorValue(imagick::COLOR_ALPHA);
echo '
Opacity: '.$pixel->getColorValue(imagick::COLOR_OPACITY);
echo '
Red value: '.round( 255 * ($pixel->getColorValue(imagick::COLOR_RED)));
echo '
Green value: '.round( 255 * ($pixel->getColorValue(imagick::COLOR_GREEN)));
echo '
Blue value: '.round( 255 * ($pixel->getColorValue(imagick::COLOR_BLUE)));
$im->destroy();

( )

Gets the global colorspace value.

/*
$im = new Imagick($input);
$colorspace = $im->getColorspace();
echo "
Image colorspace = $colorspace";
*/

Gets the object compression type.

$im = new Imagick($input);
$compression = $im->getCompression();
echo "
Image compression = $compression";

( imagick::COMPRESSION_UNDEFINED 0
imagick::COMPRESSION_NO 1
imagick::COMPRESSION_BZIP 2
imagick::COMPRESSION_DXT1 3
imagick::COMPRESSION_DXT3 4
imagick::COMPRESSION_DXT5 5
imagick::COMPRESSION_FAX 6
imagick::COMPRESSION_GROUP4 7
imagick::COMPRESSION_JPEG 8
imagick::COMPRESSION_JPEG2000 9
imagick::COMPRESSION_LOSSLESSJPEG 10
imagick::COMPRESSION_LZW 11
imagick::COMPRESSION_RLE 12
imagick::COMPRESSION_ZIP 13
)