borderImage( "$distort_bg", 1, 1 );
#### PerspectiveProjection ###
if ( $_GET[distort] == "PerspectiveProjection" )
{
# user may enter garbage so use exception to test
try {
$image->distortimage(
imagick::DISTORTION_PERSPECTIVEPROJECTION,
$args,
TRUE);
}
catch ( exception $e )
{ $_SESSION[error] = "Invalid input for selected distort method
";
header("location:$self");
exit; }
}
#### end PerspectiveProjection
#### AffineProjection ###
if ( $_GET[distort] == "AffineProjection" )
{
# user may enter garbage so use exception to test
try {
$image->distortimage(
imagick::DISTORTION_AFFINEPROJECTION,
$args,
TRUE);
}
catch ( exception $e )
{ $_SESSION[error] = "Invalid input for selected distort method
";
header("location:$self");
exit; }
}
#### end AffineProjection
#### Affine ###
if ( $_GET[distort] == "Affine" )
{
# user may enter garbage so use exception to test
try {
$image->distortimage(
imagick::DISTORTION_AFFINE,
$args,
TRUE);
}
catch ( exception $e )
{ $_SESSION[error] = "Invalid input for selected distort method
";
header("location:$self");
exit; }
}
#### end Affine
#### SRT ###
if ( $_GET[distort] == "SRT" )
{
# user may enter garbage so use exception to test
try {
$image->distortimage(
imagick::DISTORTION_SCALEROTATETRANSLATE,
$args,
TRUE);
}
catch ( exception $e )
{ $_SESSION[error] = "Invalid input for selected distort method
";
header("location:$self");
exit; }
}
#### end SRT
#### ARC ###
if ( $_GET[distort] == "Arc" )
{
# user may enter garbage so use exception to test
try {
$image->distortimage( imagick::DISTORTION_ARC, $args, TRUE);
}
catch ( exception $e )
{ $_SESSION[error] = "Invalid input for selected distort method
";
header("location:$self");
exit; }
}
#### end Arc
#### Perspective ####
if ( $_GET[distort] == "Perspective" )
{
# user may enter garbage so use exception to test
try {
$image->distortimage( imagick::DISTORTION_PERSPECTIVE, $args, TRUE);
}
catch ( exception $e )
{ $_SESSION[error] = "Invalid input for selected distort method
";
header("location:$self");
exit; }
}
#### end Perspective
#### Bilinear ####
if ( $_GET[distort] == "Bilinear" )
{
# user may enter garbage so use exception to test
try {
$image->distortimage( imagick::DISTORTION_BILINEAR, $args, TRUE);
}
catch ( exception $e )
{ $_SESSION[error] = "Invalid input for selected distort method
";
header("location:$self");
exit; }
}
#### end Bilinear
#### Undefined ####
if ( $_GET[distort] == "Undefined" )
{
# user may enter garbage so use exception to test
try {
$image->distortimage( imagick::DISTORTION_UNDEFINED, $args, TRUE);
}
catch ( exception $e )
{ $_SESSION[error] = "Invalid input for selected distort method
";
header("location:$self");
exit; }
}
#### end Undefined
# remove border that you added above.
$frame->shaveImage(1,1);
} # end frame loop
$format = strtolower( $image->getimageformat() );
$path = "temp/$ID.$_SESSION[views].$format";
$frames = $image->getNumberImages();
if ( $frames > 1) { $image->writeImages("$path", TRUE); }
else { $image->writeImage("$path"); }
# save settings
$_SESSION[distort_params] = $distort_params;
$_SESSION[distort_bg] = $distort_bg;
$_SESSION[path] = $path;
header("Location: display.php");
exit;
}
######### end Distort
include("top.php");
?>
Distort an image. Enter arguments separated by commas. You can use spaces and line breaks to make your input easier to read.
This works a little differently than Imagemagick. Instead of using a virtual pixel method it uses a background color. If you don't enter a background color it defaults to transparent for GIF's and PNG's, black for JPG's
Affine
- Affine
- AffineProjection
- Arc
- Distorts the image in an arc. Accepts up to four arguments. The first the degrees in the arc. The next three arguments are optional: Angle of rotation, top radius, bottum radius.
- Bilinear
- Same as Perspective but the edges of the finale quadrilateral will be curved instead of straight lines
- Perspective
- Perspective accepts eight x,y cooridinates, 16 arguments altogether. The cooridinates represent the starting and ending positions of the corners of a quadrilateral.
X1s,Y1s,
X1e,Y1e,
X2s,Y2s,
X2e,Y2e,
X3s,Y3s,
X3e,Y3e,
X4s,Y4s, X4e,Y4e
- PerspectiveProjection
- SRT
- SRT stands for "Scale, Rotate and Translate". Combining the three operations provides a quick way to create frames on an animation among other things, It accepts three arguments; only the first is required. The arguments are:
- Angle of rotation
- ?
- Width scale factor. (.5=half; 2=double)
-
- Height scale factor. (.5=half; 2=double)
-
- ?
- ?
- ?