Search found 58 matches

by blue-j
2016-11-22T19:06:37-07:00
Forum: Developers
Topic: OpenCL Error
Replies: 2
Views: 1752

Re: OpenCL Error

You're very kind to share your thoughts. Thank you for your time! - J
by blue-j
2016-11-22T15:33:20-07:00
Forum: Developers
Topic: OpenCL Error
Replies: 2
Views: 1752

OpenCL Error

I get this when running a convert command with OpenCL variant of 6.9.6-5: Assertion failed: (cache_info->opencl != (OpenCLCacheInfo *) NULL), function GetOpenCLEvents, file magick/cache.c, line 1699. Abort trap: 6 Can anyone explain what this means, and if there might be a way to address the issue? ...
by blue-j
2015-10-09T16:00:29-07:00
Forum: Users
Topic: Fastest Comparison Method?
Replies: 2
Views: 1421

Re: Fastest Comparison Method?

thanks so much! I didn't know of the "time" command! : )
by blue-j
2015-10-08T19:37:39-07:00
Forum: Users
Topic: Fastest Comparison Method?
Replies: 2
Views: 1421

Fastest Comparison Method?

I simply want to compare two images and know if they are visually different at all. (They will be the same size.)

I know of the AE compare metric, of IM image signatures... but what is the FASTEST method to do this?

Thanks for your consideration!

- J
by blue-j
2015-08-17T16:08:12-07:00
Forum: Developers
Topic: Mac Ports version behind
Replies: 1
Views: 1626

Re: Mac Ports version behind

I've submitted a ticket to the Macports team and this is the thread detailing the issues and progress:

https://trac.macports.org/ticket/47911
by blue-j
2015-08-06T13:58:39-07:00
Forum: Developers
Topic: Mac Ports version behind
Replies: 1
Views: 1626

Mac Ports version behind

Hi friends,

It seems that ImageMagick on Macports is at version 6.9.0-0_1 and has been there for some time. Are there plans to update the port?

Thanks!
J
by blue-j
2015-03-24T17:38:53-07:00
Forum: Consulting
Topic: Support for Layer Masks in TIFF/PSD
Replies: 3
Views: 5363

Re: Support for Layer Masks in TIFF/PSD

Hi dlemstra, I'd be happy to fund your time. Feel free to contact me privately to discuss further if you'd like! We have other things we'd like to develop and release and are hoping to evolve a lasting relationship with someone close to the code. Thank you!! : )
by blue-j
2015-03-18T12:46:26-07:00
Forum: Consulting
Topic: Support for Layer Masks in TIFF/PSD
Replies: 3
Views: 5363

Support for Layer Masks in TIFF/PSD

We'd like to fund the support of layers and layer masks in TIFF format, with PSD being a desirable footnote. We understand this is not a trivial request! But we are highly motivated. Is anyone interested in taking this on? I understand this may involve efforts for layer support in general as well. - J
by blue-j
2014-09-08T18:41:05-07:00
Forum: Developers
Topic: Perceptual Hash
Replies: 31
Views: 32089

Re: Perceptual Hash

Interesting! I am always learning, and you are an excellent mentor.

Are you aware of this paper?

http://phash.org/docs/pubs/thesis_zauner.pdf

It's what, you guessed it, Phash.org tools is based on.

J
by blue-j
2014-09-08T17:55:00-07:00
Forum: Developers
Topic: Perceptual Hash
Replies: 31
Views: 32089

Re: Perceptual Hash

I would suppose this cannot be used yet for CBIR, since one might have to calculate the compare metric for too many images too swiftly. I am puzzled how this has been solved by others. I suspect the solution is somehow to output a sortable string where clusters are more similar to each other, and pe...
by blue-j
2014-09-08T17:48:18-07:00
Forum: Bugs
Topic: PSD transparency incorrectly detected and handled
Replies: 5
Views: 5673

Re: PSD transparency incorrectly detected and handled

Hi there, and big thanks as always to the developers and community. I'm writing to check on the overall support of transparency in PSD/PSB/Adobe TIFFs. Last I knew, IM did not support recognition of background transparency in these file types and multiple alpha channels were also not handled properl...
by blue-j
2014-08-11T14:10:35-07:00
Forum: Developers
Topic: Perceptual Hash
Replies: 31
Views: 32089

Re: Perceptual Hash

In your example, you return a value of 118.937. http://www.fmwconcepts.com/imagemagick/phashcompare/index.php Does that mean it's more similar than a return of 100? I have no way to interpret the value that I can find. I read the link you provided, but apparently I don't understand this at your leve...
by blue-j
2014-08-09T20:38:53-07:00
Forum: Developers
Topic: Perceptual Hash
Replies: 31
Views: 32089

Re: Perceptual Hash

Fred, this is exciting and wonderful work! One question: how to interpret the phashcompare metric? I don't see anywhere where it's meaning is conveyed.

Thanks so much!
J
by blue-j
2014-04-07T20:48:13-07:00
Forum: Users
Topic: Quantization while retaining actual values
Replies: 5
Views: 4672

Re: Quantization while retaining actual values

Snigbo, Fred, thanks as always for the generosity of your sharing. more specifically, i am making a palette image using the -filter box function, and want to make that palette image use only the colors in the infile. my existing code: convert infile.ext +dither -colors 17 -unique-colors -filter box ...
by blue-j
2014-03-31T19:45:38-07:00
Forum: Users
Topic: Quantization while retaining actual values
Replies: 5
Views: 4672

Quantization while retaining actual values

Is there any way to quantize, but only include color values actually present in the image? For example, not quantize to the top 16 most predominant colors, as they may all be nearly white, or create averaged or otherwise calculated values that may not actually be in the source image - but to quantiz...