imagick.optimizeimagelayers(3) [php man page]

IMAGICK.OPTIMIZEIMAGELAYERS(3)						 1					    IMAGICK.OPTIMIZEIMAGELAYERS(3)

Imagick::optimizeImageLayers - Removes repeated portions of images to optimize

SYNOPSIS

       bool Imagick::optimizeImageLayers (void	)

DESCRIPTION

	Compares  each	image  the  GIF disposed forms of the previous image in the sequence. From this it attempts to select the smallest cropped
       image to replace each frame, while preserving the results of the animation. This method is available if Imagick has been  compiled  against
       ImageMagick version 6.2.9 or newer.

RETURN VALUES

	Returns TRUE on success.

ERRORS
/EXCEPTIONS
	Throws ImagickException on error.

EXAMPLES

       Example #1

	      Using Imagick.optimizeImageLayers(3)

	       Reading, optimizing and writing a GIF image

	      <?php
	      /* create new imagick object */
	      $im = new Imagick("test.gif");

	      /* optimize the image layers */
	      $im->optimizeImageLayers();

	      /* write the image back */
	      $im->writeImages("test_optimized.gif", true);
	      ?>

SEE ALSO

       Imagick.compareImageLayers(3), Imagick.writeImages(3), Imagick.writeImage(3).

PHP Documentation Group 											    IMAGICK.OPTIMIZEIMAGELAYERS(3)

IMAGICK.READIMAGEBLOB(3)						 1						  IMAGICK.READIMAGEBLOB(3)

Imagick::readImageBlob - Reads image from a binary string

SYNOPSIS

       bool Imagick::readImageBlob (string  $image, [string  $filename])

DESCRIPTION

	Reads image from a binary string

PARAMETERS

	      o $image
		-

RETURN VALUES

	Returns TRUE on success.

ERRORS
/EXCEPTIONS
	Throws ImagickException on error.

EXAMPLES

       Example #1

	      Imagick.readImageBlob(3)

	      <?php
	      function readImageBlob() {
		  $base64 = "iVBORw0KGgoAAAANSUhEUgAAAM0AAAD
	       NCAMAAAAsYgRbAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5c
	       cllPAAAABJQTFRF3NSmzMewPxIG//ncJEJsldTou1jHgAAAARBJREFUeNrs2EEK
	       gCAQBVDLuv+V20dENbMY831wKz4Y/VHb/5RGQ0NDQ0NDQ0NDQ0NDQ0NDQ
	       0NDQ0NDQ0NDQ0NDQ0NDQ0NDQ0PzMWtyaGhoaGhoaGhoaGhoaGhoxtb0QGho
	       aGhoaGhoaGhoaGhoaMbRLEvv50VTQ9OTQ5OpyZ01GpM2g0bfmDQaL7S+ofFC6x
	       v3ZpxJiywakzbvd9r3RWPS9I2+MWk0+kbf0Hih9Y17U0nTHibrDDQ0NDQ0NDQ0
	       NDQ0NDQ0NTXbRSL/AK72o6GhoaGhoRlL8951vwsNDQ0NDQ1NDc0WyHtDTEhD
	       Q0NDQ0NTS5MdGhoaGhoaGhoaGhoaGhoaGhoaGhoaGposzSHAAErMwwQ2HwRQ
	       AAAAAElFTkSuQmCC";

		  $imageBlob = base64_decode($base64);

		  $imagick = new Imagick();
		  $imagick->readImageBlob($imageBlob);

		  header("Content-Type: image/png");
		  echo $imageBlob;
	      }

	      ?>

PHP Documentation Group 												  IMAGICK.READIMAGEBLOB(3)