#Imagemagick resize install#
#Imagemagick resize code#
#Imagemagick resize free#

The reasons for this is mostly due to legacy use and should be avoided if at all possible. The operator behaves slightly differently in every IM command, and often in special and magical ways. I haven't used previous versions of ImageMagick but on version v6 or later according to the docs There are an awful lot of functions, but it should not be too difficult to figure out the rest on Google.

#Imagemagick resize install#

In addition, the montage command is probably perfect to create the final image you are looking for (on a transparent bg with some padding, etc), but I don't remember the syntax.Īnother useful command is identify, to find the dimensions of images (along with other details).Īfter you install ImageMagick, you can see the list of commands in man ImageMagick, and get further details on each command in the man pages. # resize image to height 25, keeping aspect ratioĬonvert -geometry x25 src/image1.png out/image1.pngĬonvert +append src/image1.png src/image2.png out/image12horiz.pngĬonvert -append src/image1.png src/image2.png out/image12vert.png You're question is not very specific, so here's a quick cheat sheet of command examples that may help you: # resize image to width 25, keeping aspect ratioĬonvert -geometry 25x src/image1.png out/image1.png gmdate('D, d M Y H:i:s', time() + $offset). add a 'Expires' header with an offset of 24 hours $image->thumbnailImage($w, $h, true, true) If (empty($h)) $h = round($w * ($image->getImageHeight() / $image->getImageWidth())) If (empty($w)) $w = round($h * ($image->getImageWidth() / $image->getImageHeight())) die if required parameters are not present 1 : proportional resize with center padding (using background color)

0 (default) : proportional resize (mantaining h/w ratio) with best-fit crop mode : enum corresponding to resize mode type

456FE2 (6 hex digits: can handle upper and lower cases) - DEFAULT: 000000 (black) If neither of them are present, the script will just return the source image without performing changes. If one between width (w) and height (h) parameter is not present, it will be automatically calculated using the same ratio inferred from the other one this also means that mode will be irrelevant in such scenario, since no cropping nor padding will occur. To better understand it, take a look at the following screenshot: The main difference between mode 0 and mode 1 is that the first will potentially crop the source image in order to make it fit to the given width/height while avoiding the 'padding' effect, while the second will preserve the image content while potentially adding a padding to make it fit. bg : the background padding color, only used when mode is equal to 1 and the thumbnail requires a padding (default is 000000, meaning that we'll have a black background).mode : 0 for proportional resize with a 'best-fit' crop (default), 1 for proportional resize with background padding.h : the height of the thumbnail that will be generated.w : the width of the thumbnail that will be generated.

#Imagemagick resize code#

Here's the sample code for a minimalistic thumb.php file that accepts the following GET parameters: Now that we've dealt with the prerequisites and checked that everything is worked as expected, we can proceed with the source code. WARNING: be sure to delete the phpinfo.php file as soon as you don't need it anymore: leaving it publicly available is a major security risk, as it exposes your entire PHP configuration, as well as some sensitive system settings and folder structures.

#Imagemagick resize free#

None so far: the Linux configuration is usually free from major issues, as long as the appropriate Imagick and ImageMagick versions are being installed. If you see 'permissions denied' issues, this workaround will most likely fix it.

This might be required if your PHP temporary folder is unaccessible from the ImageMagick executables, which seems to be fairly frequent on most Windows-based servers.

Create a temporary folder accessible by ImageMagick and add it to the MAGICK_TEMPORARY_PATH (or MAGICK_TMPDIR) environment variable.

Be sure to add the folder containing the executable files, because it has been changed between ImageMagick 6.x and 7.x versions in the following way:

Add the ImageMagick installation folder to the PATH environment variable.

If imagick is present among the resulting text lines, it means that everything is ok.