Unix and Linux Discussions Tagged with image |
|
Thread / Thread Starter |
Last Post |
Replies |
Views |
Forum |
|
|
|
2 |
3,499 |
UNIX for Beginners Questions & Answers |
|
|
|
0 |
12,389 |
What is on Your Mind? |
|
|
|
3 |
6,859 |
Web Development |
|
|
|
2 |
1,811 |
Programming |
|
|
|
4 |
2,892 |
Solaris |
|
|
|
3 |
5,820 |
Solaris |
|
|
|
0 |
9,636 |
FAQ Submission Queue |
|
|
|
3 |
1,799 |
Shell Programming and Scripting |
|
|
|
4 |
8,811 |
Programming |
|
|
|
5 |
4,569 |
Programming |
|
|
|
8 |
16,874 |
Shell Programming and Scripting |
|
|
|
3 |
2,532 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
8,000 |
Shell Programming and Scripting |
|
|
|
3 |
6,764 |
UNIX for Advanced & Expert Users |
|
|
|
5 |
4,416 |
UNIX for Dummies Questions & Answers |
|
|
|
0 |
1,106 |
Software Releases - RSS News |
|
|
|
0 |
888 |
Software Releases - RSS News |
|
|
|
0 |
1,394 |
Software Releases - RSS News |
|
|
|
0 |
2,002 |
Software Releases - RSS News |
|
|
|
0 |
1,179 |
Software Releases - RSS News |
|
|
|
0 |
1,534 |
UNIX and Linux RSS News |
|
|
|
1 |
2,519 |
Shell Programming and Scripting |
|
|
|
0 |
1,014 |
Software Releases - RSS News |
|
|
|
0 |
1,054 |
Software Releases - RSS News |
|
|
|
3 |
6,479 |
AIX |
|
|
|
0 |
2,062 |
UNIX and Linux RSS News |
|
|
|
0 |
1,074 |
Software Releases - RSS News |
|
|
|
0 |
880 |
Software Releases - RSS News |
|
|
|
0 |
824 |
Software Releases - RSS News |
|
|
|
0 |
1,242 |
Software Releases - RSS News |
|
|
|
0 |
950 |
Software Releases - RSS News |
|
|
|
2 |
3,911 |
Linux |
|
|
|
0 |
2,085 |
UNIX and Linux RSS News |
|
|
|
0 |
1,338 |
Software Releases - RSS News |
|
|
|
0 |
1,032 |
Software Releases - RSS News |
|
|
|
0 |
1,157 |
Software Releases - RSS News |
|
|
|
0 |
974 |
Software Releases - RSS News |
|
|
|
0 |
1,388 |
UNIX and Linux RSS News |
|
|
|
0 |
740 |
Software Releases - RSS News |
|
|
|
0 |
1,249 |
Software Releases - RSS News |
IMAGEISTRUECOLOR(3) 1 IMAGEISTRUECOLOR(3)
imageistruecolor - Finds whether an image is a truecolor image
SYNOPSIS
bool imageistruecolor (resource $image)
DESCRIPTION
imageistruecolor(3) finds whether the image $image is a truecolor image.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
RETURN VALUES
Returns TRUE if the $image is truecolor, FALSE otherwise.
EXAMPLES
Example #1
Simple detection of true color image instances using imageistruecolor(3)
<?php
// $im is an image instance
// Check if image is a true color image or not
if(!imageistruecolor($im))
{
// Create a new true color image instance
$tc = imagecreatetruecolor(imagesx($im), imagesy($im));
// Copy over the pixels
imagecopy($tc, $im, 0, 0, 0, 0, imagesx($im), imagesy($im));
imagedestroy($im);
$im = $tc;
$tc = NULL;
// OR use imagepalettetotruecolor()
}
// Continue working with image instance
?>
NOTES
Note
This function requires GD 2.0.1 or later (2.0.28 or later is recommended).
SEE ALSO
imagecreatetruecolor(3), imagepalettetotruecolor(3).
PHP Documentation Group IMAGEISTRUECOLOR(3)