Search found 36 matches

by DrEvil
2014-01-13T08:39:04-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

It's a build I linked to above

Code: Select all

Version: ImageMagick 6.7.6-1 2012-03-17 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2012 ImageMagick Studio LLC
Features:   HDRI
I'm not building the code, and have little interest in doing so. Maybe I'll try the alpha.
by DrEvil
2014-01-13T07:31:17-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

Grr. My next hurdle appears to be that it is choking on the size of my input file with the following error convert.exe: UnableToConvertStringToARGV `Not enough space' @ fatal/string.c/StringToArgv/2046. Some weird observations from testing the number of events. My events file for this test is a litt...
by DrEvil
2014-01-13T06:16:27-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

Thanks. I forgot to mention that upon using the hdri version I'm getting the results I need. I'm working on setting up a much larger test with real event data.
by DrEvil
2014-01-13T05:50:34-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

convert -version Version: ImageMagick 6.8.8-2 Q16 x64 2014-01-09 http://www.imagemagick.org Copyright: Copyright (C) 1999-2014 ImageMagick Studio LLC Features: DPC Modules OpenMP Delegates: bzlib cairo freetype jbig jng jp2 jpeg lcms lqr pangocairo png ps rsvg tiff webp xml zlib I grabbed an hrdi v...
by DrEvil
2014-01-13T04:27:45-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

Thanks I'll look into that next. I was hoping the floating point mode would be enough to get me to an unclamped range, and also because it makes things easier later bc I hope to have variable weighting of events in their floating point value(implemented as variable value of inner radius of the gradi...
by DrEvil
2014-01-12T20:41:41-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

I think I haven't been clear enough on my intent for the floating point color use. When I draw an event in a Grey scale radial falloff it is getting presumably a 0.0-1.0 color values across the channels. When I draw an additive event on top of that, I'm looking for the values to then additively be 1...
by DrEvil
2014-01-12T20:33:13-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

The whole point of using the floating point texture is so the accumulation can't saturate and can increase to arbitrary values. Then the auto level normalizes the image of arbitrary values down and then the colorization step gives it a color. The stacked values should accumulate to a double the valu...
by DrEvil
2014-01-12T18:25:00-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

http://imgur.com/golFzMo,8DIHKBf#0 http://imgur.com/golFzMo,8DIHKBf#1 In the first picture there are 2 identical events. In the second picture one of the events has been copy and pasted so that there are stacked events. You can see an effect on the stacked event, but the other event is static, whic...
by DrEvil
2014-01-12T12:42:07-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

Ok I'm trying to get the floating point part to work properly and I'm not sure what I'm doing wrong. Specifically, the accumulation isn't working how I expect it to. In the inc file, the 2nd event is double in order to test the accumulation and normalization. The expectation is that overlapping even...
by DrEvil
2014-01-12T12:02:13-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

perfect. thanks
by DrEvil
2014-01-12T11:08:54-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

windows at the moment, but this may end up running on a web backend at some point
by DrEvil
2014-01-11T21:39:01-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

It seems that I'll need to generate a batch file and such with individual commands for each event to be accumulated into the heatmap prior to colorization? That's fine, but if they are individual commands, does that mean convert.exe has to open, parse, draw, save and close the file for each event? I...
by DrEvil
2014-01-11T19:03:54-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

Suppose you have a series of line segments that make up a line strip of arbitrary length. The desire is to draw this line strip from point to point representing heat map events such as a persons locational history(where they moved around the environment, etc). Like the radial gradients, I would idea...
by DrEvil
2014-01-11T16:40:16-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

Is there a way to create gradients off of line strips in a way that doesn't over saturate the overlapping pixels of neighboring lines(such as if you did each line segments separately)?
by DrEvil
2014-01-11T15:38:03-07:00
Forum: Digital Image Processing
Topic: Heat map with lots of events
Replies: 63
Views: 112876

Re: Heat map with lots of events

Again thanks a lot. Is there a way to specify the geometry of the images based on their center or is it always upper left?