Reptorian G'MIC Filters

[Reptorian]

No, it doesn’t. Also, the downside of the new method is that I can’t replicate what I did with balance option on the version that’s available in gmic-community. Balance is the minimum value or maximum from the combined convolution of different stroke angles. If that can be solved, then potentially, this filter and rodilus filter can be 3 times faster i.e from 15 s to 5 s flat.

EDIT: I’m looking at this though I don’t know how to code for g’mic c++ side of thing.

https://www.spiral.net/software/sfft.html

If I’m reading the benchmark right, then it might in theory solve the speed issue.

[afre (Alan)]

Interesting. Full of links and code for further investigation.
Likely @David_Tschumperle territory (if he has the time).

[David_Tschumperle (G'MIC staff)]

@afre

if he has the time

Precisely not !

I have a look to the backslash problem in Custom code.
Also, for defining a 5x5 kernel full of 1, it is shorter to write: 5,5,1,1,1.

[David_Tschumperle (G'MIC staff)]

Your filter attempt made me experiment some funny idea, based on the computation of 1D-blurred versions of rotated versions of the input image, followed by a median blending at the end.
The results looks a bit like what you obtain :

I wonder if this could do an interesting filter.
Here is the code:

test :
  W,H={0,[w,h]}
  repeat 7
    ang={$>*360/7}
    +rotate[0] $ang,1 b. x,10%,0 rotate. -$ang,1 r. $W,$H,1,100%,0,0,0.5,0.5
    n. 0,255 sharpen. 100 equalize. 256
  done
  blend_median +ac "normalize_local ,",ycbcr_y blend alpha,0.5

[David_Tschumperle (G'MIC staff)]

And when I’m using single-sided oriented convolution kernels, that looks good also (and the timing is not bad, like 2-3 second for a 800x800 image).

I get this:

With the code:

test2 :
  W,H={0,[w,h]}
  repeat 5
    ang={$>*360/5}
    130,1 gaussian. 20%,0.1 f. "x>w/2?i:0" rotate. $ang,1 /. {is}
    +convolve_fft[0] .,0 rm..
    n. 0,255 sharpen. 100
  done
  rm[0] blend_median +ac "normalize_local ,",ycbcr_y blend alpha,0.5

[David_Tschumperle (G'MIC staff)]

Playing with the final blending modes and different options of the filter, I think it deserves to be published as a new filter.
I’ll doing that this afternoon.

[David_Tschumperle (G'MIC staff)]

Filter done. Available at Degradations / Blur [Multidirectional].
Some results below:

[afre (Alan)]

Looks like someone has repressed anger.

[hover]

Is popcorn fractal the same as in Apophysis flame fractal ?

[Reptorian]

I don’t use Apophysis, however I got the formula from here - Pickover Popcorn | Element90 Fractals

[Reptorian]

Okay, now I got new progress. However, I would like to be able to run a command to verify if window is on since I am running run(w[-1], and it is used to check on the progress of DLA.

Here’s a example involving new code.

You see that it’s growing around the text image? Let’s say I close the window. I should expect to end with that. I can always add a option to add boundary option to limit numbers of vector though.

---

EDIT:

Solved the mask issue. Also, I added a new option to erase mask after processing.

[Reptorian]

New Filter! - Diffusion Limited Aggregation

I’m finished with the filter. Finally, that was difficult to make.

Check by in a hour or two if it haven’t arrived after refresh.

[Reptorian]

New Filter! - Pseudorandom Noise

There is a bug on the filter with double pixel axis mode, but single pixel axis looks better anyway, so I wouldn’t be so pressed about it. I will fix that bug when the time comes. It rarely shows up anyway.

[Reptorian]

New Filter! - Tiled Zoom

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Non-Isometric Tiling Tool now has fill tool built-in to it. Read the instruction to use it. I thought it was going to be difficult, but highlighting lines with KDE Kate really makes it easy.

[hover]

Reptorian, could you create this kind of organic generator

[Reptorian]

Not without code and without the name. I do not do request.

[hover]

I don’t know what is called. It’s basically this you’ve already done only smoothed out and having soft transitions- Reptorian G'MIC Filters - #554 by Reptorian

[Reptorian]

You linked to this thread. The smoothening and transition part exists. Just not the structure. From a theoretical perspective, I can take a look at TR’s source code to one of his filter and do something like that.

[Reptorian]

I made a simple glitch filter to experiment with.

rgb2yiq8
f "begin(
 rv(v)=(
  rv=0;
  n=v;
  do(
  rv=int(rv)*10+n%10;
  n=int(n)/10;
  ,int(n)>0);
  int(rv);
 );
);
rv(i);
"
yiq82rgb

What this does is reverse digits. @Joan_Rake1 I’m sure you can do something interesting here.

A little modification leads me to this.

EDIT: I just had pushed the Reverse Digits glitch filter.

[Reptorian]

Upgraded filter - Modulus Operation

At long last, I finally upgraded it. It took me a while to do so.