Legacy ImageMagick Discussions Archive

Greetings,

I read with interest about the new Voronoi' Morphology Distance method that "will fill in holes using the nearest non-transparent edge pixel".

Can someone please show me an example how to use this feature?

Thank you!

Thank you!

So what would be involved for making the general use functions (like the MagicWand API) take advantage of that?

Are there any plans to support OpenCL?

I might be able to help if I can...

Is it possible to constrain text to flow within a given vector shape?

An example shape may be a circle or rectangle.

Any suggestions are greatly appreciated!


Thanks.

I think if we could get variable dots based on the brightness of each channel (as discussed on the other thread) then apply those dots using the overlay composite operator, it would be 100% legit. For my purposes though, I am just trying to closely emulate the effect, and I think fixed dot sizes ...

Thanks Anthony, looks good!

I will play around with your scripts. I think we pretty much have got it!

I used 108, 162, 90 and 45 degrees for CMYK respectively which are the defaults for Photoshop's CMYK halftone.

I think I figured out how to create a true CMYK halftone effect, see: viewtopic.php?f=1&t=18409&p=70754#p70754

I think a figured out a way to achieve this. I did the following in Photoshop, but I think it can all be done with IM. The only thing I am not sure about is converting the image to CMYK (from RGB) and extracting each of the channels, since I haven't yet done any CMYK conversions with ImageMagick. I ...

BEAUTIFUL! Thank you very very much! I owe you a brew. That did it! I had tried specifying the blur wand as the first wand for the composite argument, but I didn't try doing the linear stretch after the composite! So that is what the +swap does! :o Thanks again! Do you have an iOS device? If so I ...

Thanks, but actually doesn't help.

The code I have is working, I think the issue is I don't know what the equivalent composite operators from the convert command are.

Greetings, I am trying to port this convert command to the MagickWand API: convert ~/input.png \( +clone -blur 0x6 \) +swap -compose divide -composite -linear-stretch 15%x0% ~/output.png This is what I am doing, but it does not come out the same: // magick_wand contains the input.png data MagickWand ...

Greetings, I have looked at all of the available halftone presets, and I can't figure out how to make something similar to a true CMYK halftone. Pixelmator (based on ImageMagick) does exactly what I am trying to achieve, here is an example: http://3DTOPO.com/CMYK_halftone.png Any suggestions would ...

Greetings,

I could be wrong, but I think I remember reading of a way to reduce areas of an image to a single pixel using ImageMagick.

I am trying to achieve something like the results of the right hand image:



Any suggestions would be greatly appreciated!

Greetings, I am reading in a grayscale image, but it seems like somehow the wand is reading it as an RGB image. The reason I suspect this is because if I run this: MagickLevelImageChannel(magick_wand2, GrayChannel, (0.5f * QuantumRange), 0.6666f, (0.8f * QuantumRange)); It apparently is only doing ...

Greetings, iOS 4 added an Accelerate framework, that according to Apple: ...the Accelerate Framework, which contains C APIs for vector and matrix math, digital signal processing, large number handling, and image processing. Documentation and sample code is here: http://developer.apple.com/library ...