imageconvolutionimageconvolution
(PHP 5 >= 5.1.0RC1)
imageconvolution -- Apply a 3x3 convolution matrix, using coefficient and offset
Opis
bool
imageconvolution ( resource image, array matrix, float div, float offset )
Applies a convolution matrix on the image, using the given coefficient and
offset.
Parametry
obrazZasób obrazu, zwrócony przez jedną z funkcji tworzących obrazy,
taką jak imagecreatetruecolor().
matrix
A 3x3 matrix: an array of three arrays of three floats.
div
The divisor of the result of the convolution, used for normalization.
offset
Zwracane wartości
Zwraca TRUE w przypadku sukcesu, FALSE w
przypadku porażki.
Przykłady
Przykład 1. Embossing the PHP.net logo
<?php
$image = imagecreatefromgif('http://www.php.net/images/php.gif');
$emboss = array(array(2, 0, 0), array(0, -1, 0), array(0, 0, -1));
imageconvolution($image, $emboss, 1, 127);
header('Content-Type: image/png');
imagepng($image, null, 9);
?>
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Powyższy przykład wyświetli: 
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Przykład 2. Gaussian blur
<?php
$image = imagecreatetruecolor(180,40);
// Writes the text and apply a gaussian blur on the image
imagestring($image, 5, 10, 8, 'Gaussian Blur Text', 0x00ff00);
$gaussian = array(array(1.0, 2.0, 1.0), array(2.0, 4.0, 2.0), array(1.0, 2.0, 1.0));
imageconvolution($image, $gaussian, 16, 0);
// Rewrites the text for comparison
imagestring($image, 5, 10, 18, 'Gaussian Blur Text', 0x00ff00);
header('Content-Type: image/png');
imagepng($image, null, 9);
?>
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Powyższy przykład wyświetli: 
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Notatki
Notatka: Ta funkcja jest dostępna tylko jeśli
PHP zostało skompilowane z dołączoną wersją biblioteki GD.
-
hacking
-
umts
- Oprogramowenie tworzace
sklepy internetowe nowszej generacji.
- Bardzo
miłosne opisy na gg
- Najlepsze
pionowe opisy gg do Twojego komunikatora
- najlepsze
darmowe programy w Polsce
-
pozycjonowanie stron
-
gotseoweb
-
odzyskiwanie danych Katowice
-
pogotowie komputerowe
- tylko dobre
łożyska mają gwarancję
-
Jan Fela
-
zdjęcia roślin
-
zdjęcia z gier
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G:0,M:0,Y:0
