Imagick::getImageInterlaceScheme

(PECL imagick 2, PECL imagick 3)

Imagick::getImageInterlaceSchemeGets the image interlace scheme

Descrição

public Imagick::getImageInterlaceScheme(): int

Gets the image interlace scheme.

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

Returns the interlace scheme as an integer on success. Lança uma exceção ImagickException em caso de erro.

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holdoffhunger at gmail dot com
11 years ago
Image Interlacing is simply combining two images by layering one over the other with a certain opacity (usually 50%).  The intention is to use the image in video, so that two images are displayed within one single frame, thereby doubling the frames-per-second without doubling the actual, physical amount of frames.  Wikipedia provides a fairly decent explanation of this type of video technology: http://en.wikipedia.org/wiki/Interlaced_video .

Best Description :
http://www.100fps.com/

Some sample code :

<?php

           
// Author: holdoffhunger@gmail.com
   
        // Imagick Type
        // ---------------------------------------------

   
$imagick_type = new Imagick();
   
       
// Open File
        // ---------------------------------------------
       
   
$file_to_grab = "image_workshop_directory/test.jpg";
   
   
$file_handle_for_viewing_image_file = fopen($file_to_grab, 'a+');
   
       
// Grab File
        // ---------------------------------------------

   
$imagick_type->readImageFile($file_handle_for_viewing_image_file);
   
       
// Get Rendering Intent Values
        // ---------------------------------------------

   
$imagick_rendering_intent = $imagick_type->getImageRenderingIntent();
   
    switch(
$imagick_rendering_intent)
    {
        case
'0':
           
$image_rendering_intent_evaluated = "Undefined";
            break;
           
        case
'1':
           
$image_rendering_intent_evaluated = "Saturation";
            break;
           
        case
'2':
           
$image_rendering_intent_evaluated = "Perceptual";
            break;
           
        case
'3':
           
$image_rendering_intent_evaluated = "Absolute";
            break;
           
        case
'4':
           
$image_rendering_intent_evaluated = "Relative";
            break;
    }
   
       
// Print Rendering Intent Values
        // ---------------------------------------------
   
   
print("# $imagick_rendering_intent - $image_rendering_intent_evaluated");

?>
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