PHP Conference Japan 2024

Imagick::getImageInterlaceScheme

(PECL imagick 2, PECL imagick 3)

Imagick::getImageInterlaceSchemeLit le schéma d'entrelacement de l'image

Description

public Imagick::getImageInterlaceScheme(): int

Lit le schéma d'entrelacement de l'image.

Liste de paramètres

Cette fonction ne contient aucun paramètre.

Valeurs de retour

Retourne le schéma d'entrelacement de l'image en cas de succès. Émet une exception ImagickException en cas d'échec.

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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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