PHP Australia Conference 2015

Imagick::getImageType

(PECL imagick 0.9.10-0.9.9)

Imagick::getImageTypeObtiene el tipo de imagen potencial

DescripciĆ³n

int Imagick::getImageType ( void )

Obtiene el tipo de imagen potencial.

Valores devueltos

Devuelve el tipo de imagen potencial.

  • imagick::IMGTYPE_UNDEFINED
  • imagick::IMGTYPE_BILEVEL
  • imagick::IMGTYPE_GRAYSCALE
  • imagick::IMGTYPE_GRAYSCALEMATTE
  • imagick::IMGTYPE_PALETTE
  • imagick::IMGTYPE_PALETTEMATTE
  • imagick::IMGTYPE_TRUECOLOR
  • imagick::IMGTYPE_TRUECOLORMATTE
  • imagick::IMGTYPE_COLORSEPARATION
  • imagick::IMGTYPE_COLORSEPARATIONMATTE
  • imagick::IMGTYPE_OPTIMIZE

Errores/Excepciones

Lanza ImagickException en caso de error.

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User Contributed Notes 2 notes

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0
holdoffhunger at gmail dot com
2 years ago
This function will return an integer, with that value being equal to the evaluated value of the IMGType Constants as defined by the ImageMagick class.  When accessing them, they look like "imagick::IMGTYPE_PALETTE", but with "_VALUE" values of: undefined, bilevel, grayscale, grayscalematte, palette, palettematte, truecolor, truecolormatte, colorseparation, colorseparationmatte, and optimize.  If you were to print out these values, you would have '0' for undefined, '1' for bilevel, '2' for grayscale, and so on.

For a BMP picture drawn in paint, I got back the value # 4 - Palette.  For a BMP or JPEG photograph of the ocean or jungle, I got back the value # 6 - Truecolor.  For an animated GIF file, I got back the value # 5 - Palette Matte.  For a black-and-white JPEG drawing, I got back the value # 2 - Grayscale.  These are the most common results I have gotten back with this function.

Some sample code :

<?php

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

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

   
$imagick_type->readImageFile($file_handle_for_viewing_image_file);
   
       
// Get Image Type Value
        // ---------------------------------------------
       
   
$image_type = $imagick_type->getImageType();
   
       
// Interpret Image Type Value
        // ---------------------------------------------

   
switch($image_type)
    {
        case
imagick::IMGTYPE_UNDEFINED:
           
$image_type_title = "Undefined";
            break;
           
        case
imagick::IMGTYPE_BILEVEL:
           
$image_type_title = "Bilevel";
            break;
           
        case
imagick::IMGTYPE_GRAYSCALE:
           
$image_type_title = "Grayscale";
            break;
           
        case
imagick::IMGTYPE_GRAYSCALEMATTE:
           
$image_type_title = "Grayscale Matte";
            break;
           
        case
imagick::IMGTYPE_PALETTE:
           
$image_type_title = "Palette";
            break;
           
        case
imagick::IMGTYPE_PALETTEMATTE:
           
$image_type_title = "Palette Matte";
            break;
           
        case
imagick::IMGTYPE_TRUECOLOR:
           
$image_type_title = "Truecolor";
            break;
           
        case
imagick::IMGTYPE_TRUECOLORMATTE:
           
$image_type_title = "Truecolor Matte";
            break;
           
        case
imagick::IMGTYPE_COLORSEPARATION:
           
$image_type_title = "Color Separation";
            break;
           
        case
imagick::IMGTYPE_COLORSEPARATIONMATTE:
           
$image_type_title = "Color Separation Matte";
            break;
           
        case
imagick::IMGTYPE_OPTIMIZE:
           
$image_type_title = "Optimize";
            break;
    }
   
       
// Print Image Type Value
        // ---------------------------------------------
       
   
print("# $image_type - $image_type_title");

?>
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0
lukeydeluxe at gmail dot com
5 years ago
Remember, the result, if successful, is an Array, wich means you should call for example "$var[format]" if you want to know what format the file uses.
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