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Code Issues Releases Wiki Activity

Added support for custom convolutions. Fix #49.

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This commit is contained in:
Mikael Roos
2014-11-27 22:04:41 +01:00
parent 832edc9d26
commit 3c04a2dd0f
5 changed files with 199 additions and 97 deletions
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44
webroot/img_config.php
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@@ -11,14 +11,16 @@ return array(
* Paths, where are all the stuff I should use?
* Append ending slash on directories.
*/
'cimage_class' => __DIR__.'/../CImage.php',
'image_path' => __DIR__.'/img/',
'cache_path' => __DIR__.'/../cache/',
'cimage_class' => __DIR__ . '/../CImage.php',
'image_path' => __DIR__ . '/img/',
'cache_path' => __DIR__ . '/../cache/',
/**
* Check that the imagefile is a file below 'image_path' using realpath().
* Security constraint to avoid reaching images outside image_path.
* This means that symbolic links to images outside the image_path will fail.
*/
'image_path_constraint' => true,
@@ -32,7 +34,7 @@ return array(
/**
* Set default timezone, it defaults to UTC if not specified otherwise.
* Set default timezone, it defaults to UTC if not specified.
*
*/
//'default_timezone' => 'UTC',
@@ -40,7 +42,9 @@ return array(
/**
* Max image dimensions,
* Max image dimensions, larger dimensions results in 404.
* This is basically a security constraint to avoid using resources on creating
* large (unwanted) images.
*
*/
'max_width' => 2000,
@@ -65,9 +69,33 @@ return array(
/**
* Create custom convolution expressions, matrix 3x3, divisor and
* offset.
*/
'convolution_constant' => array(
'edge' => '-1,-1,-1, -1,8,-1, -1,-1,-1, 9, 0',
'edge-alt' => '0,1,0, 1,-4,1, 0,1,0, 1, 0',
'draw' => '0,-1,0, -1,5,-1, 0,-1,0, 0, 0',
'sharpen-alt' => '0,-1,0, -1,5,-1, 0,-1,0, 1, 0',
'emboss-alt' => '-2,-1,0, -1,1,1, 0,1,2, 1, 0',
'mean' => '1,1,1, 1,1,1, 1,1,1, 9, 0',
'motion' => '1,0,0, 0,1,0, 0,0,1, 3, 0',
),
/**
* Predefined size constants.
*
*
* These can be used together with &width or &height to create a constant value
* for a width or height where can be changed in one place.
* Useful when your site changes its layout or if you have a grid to fit images into.
*
* Example:
* &width=w1 // results in width=613
* &width=c2 // results in spanning two columns with a gutter, 30*2+10=70
* &width=c24 // results in spanning whole grid 24*30+((24-1)*10)=950
*/
'size_constant' => function () {
@@ -115,8 +143,10 @@ return array(
'error_reporting' => function () {
error_reporting(-1); // Report all type of errors
ini_set('display_errors', 1); // Display all errors
ini_set('output_buffering', 0); // Do not buffer outputs, write directly
set_time_limit(20);
ini_set('gd.jpeg_ignore_warning', 1); // Ignore warning of corrupt jpegs
if (!extension_loaded('gd')) {
throw new Exception("Extension gd is nod loaded.");
}
},
);