I was looking in MagickCore::CompositeOperator but i didn’t find flatten operator. Something like backgorund i found, but how to do gray50?. That’s what “-flatten” does. It takes a sequence of images, composes them one at a time against the previous image(s), taking transparency into account. As nick said, the function Imagick::flattenImages() is deprecated. Replacing it by Imagick::mergeImageLayers(Imagick::LAYERMETHOD_FLATTEN) partially.

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Flatten transparency – ImageMagick

Disabling dithering often but not always leads to decreased processing time. If the —coalesce option appears after all of the input images, all images are coalesced. The sequence of images is replaced by a single image created by composing each image after the first over the first image.

For example, if you want to automatically trim the edges of an image with —trim but the image was scanned and the target background color may differ by a small amount. Note this offset and the image size.


All image rows are of equal length, and all image columns have the same number of rows. When using a image index such as ‘ u[t] ‘ all image selectors ‘ u ‘, ‘ v ‘, and ‘ s ‘, all references the same image, flwtten to the ‘ [index] ‘ given. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Screening any color with black leaves the original faltten unchanged.

Each image image,agick the range is read with the filename followed by a period. On top of this a layer with some text that is written over that object.


Follow the image keyword with the composite operator, image location, image size, and filename:. If the x and y offsets are omitted, a set of tiles of the specified geometry, covering the entire input image, is generated. By default, all images of an image sequence are stored in the same flattdn. This backdrop covers the entire workstation screen and is useful for hiding other X window activity while viewing the image.

By default, the window size is the image size and the location is chosen by you when it is mapped. When used with the identify utility, use this option to print information about the image in a format of your choosing.

Another way of appending images is by smushing. The ” -smush ” operator works much like the Append Operator see above does, but it takes an argument of how much space or anti-space you want between the images.

Only the text primitive is affected by the —gravity option. The —units option may be used to select dots per centimeter instead. Gamma less than 1. See —geometry for details of how the —gravity option interacts with imagemaglck x and y parameters of a geometry specification.

Darkens the destination color to reflect the source color. Coordinates are integers separated by an optional comma.

If the first character of string isthe image comment is read from a file titled by the remaining characters in the string. Each image N in the sequence after Image 0 is replaced with the image created by flattening images 0 through N. ImageMagick examples mostly using php Imagick examples. I think this was the post. In theese case the conversion process only generates blank output But when I optimize the pdf files in acrobat professional the problem is solved To skip this step in acrobat professional I was wondering if there was a way to use imagemagick to flatten transparency?


While the ” -gravity ” setting will effect image placement defined using ” -geometry ” settings, it will not effect image positioning using virtual canvas offsets set via the ” -page ” setting. To specify the amount to be removed, use —shave instead.

If you want a description flatte a particular option, click on the option name in the navigation bar above and you will go right to it. When writing to a MNG file, a —page option appearing ahead of the first image in the sequence with lmagemagick width imagemqgick height defines the width and height values that are written in the MHDR chunk. After testing multiple settings I have discovered that if I remove the -density or lower it to -density 50 the pages which gave me problems are created unfortunatly the quality is very low and jagged.

Post as a guest Name. The destination is replaced with the source when the source is darker, otherwise it is left unchanged. Choose from these noise types:. For unfilled shapes, use —fill none.

Refer to the color reduction algorithm for more details. Pure colors like black, white red, yellow, will not be affected by -tint. Also, Flatteen new to this forum.