[G'MIC] New filter 'Black & White / Colorize [interactive]'

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

Hi molly,

This is what I get with an old B&W picture, using the G'MIC filter Black & White / Colorize [interactive].
It took me no more than 10 mn to get this result. Quite decent I think.

Attachment:

gmic_colorize_all.png [ 1.65 MiB | Viewed 2034 times ]

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

Wow, David that is a great result. Now, if I can emulate that, I will be quite happy, lol
I still don't know how to get that swatch that you used in the video. All my tools, gradients, color swatches are in Thunar File Manager, and I can't get to it.

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

Another example of this filter, applied on another B&W photo :

Attachment:

gmic_colorize_all2.jpg [ 547.56 KiB | Viewed 1980 times ]

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

David, I finally found out what I was doing wrong. I didn't check the mode and it was on Grayscale, I changed it to RGB and VOILA, it now works. woo hoo.
thanks for your patience :pengy

"O doesn't like this guy"

default picture was all black and white

mackenzieh · **Posted:** Fri Oct 03, 2014 11:39 am **(#45)**

For some reason this filter is really slow.

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

Slow ? how slow ? For the final rendering ? (what is your image resolution ?). For the interactive rendering ? (what option did you choose, what is your CPU, etc... ).
Please give more infos to quantize this slowness and determine if this is normal or not.

mackenzieh · **Posted:** Fri Oct 03, 2014 11:53 am **(#47)**

Ronounours wrote:

Slow ? how slow ? For the final rendering ? (what is your image resolution ?). For the interactive rendering ? (what option did you choose, what is your CPU, etc... ).
Please give more infos to quantize this slowness and determine if this is normal or not.

I chose medium for the resolution, input is B&W photograph, output type is colors 1 layer.

gimper66 · **Posted:** Fri Oct 03, 2014 11:58 am **(#48)**

I have the folder with the filter -black & white / colorize (interactive) downloaded
The filter seems to be wonderful to work with
I opened the folder, but where should I put everything
I ask the question to be sure that I'm not doing anything wrong
can someone help me please
thanks in advance

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

mackenzieh wrote:

Ronounours wrote:

Slow ? how slow ? For the final rendering ? (what is your image resolution ?). For the interactive rendering ? (what option did you choose, what is your CPU, etc... ).
Please give more infos to quantize this slowness and determine if this is normal or not.

I chose medium for the resolution, input is B&W photograph, output type is colors 1 layer.

OK, but how slow ? Several minutes ? seconds ? what the size of the picture ?
It is not uncommon to wait several seconds on a quite slow machine that the colors refreshes, particularly when computing fullres result.
This filter does quite smart (but CPU-consuming) things, that is also why it is interesting

mackenzieh · **Posted:** Fri Oct 03, 2014 12:23 pm **(#50)**

Ronounours wrote:

mackenzieh wrote:

Ronounours wrote:

Slow ? how slow ? For the final rendering ? (what is your image resolution ?). For the interactive rendering ? (what option did you choose, what is your CPU, etc... ).
Please give more infos to quantize this slowness and determine if this is normal or not.

I chose medium for the resolution, input is B&W photograph, output type is colors 1 layer.

OK, but how slow ? Several minutes ? seconds ? what the size of the picture ?
It is not uncommon to wait several seconds on a quite slow machine that the colors refreshes, particularly when computing fullres result.
This filter does quite smart (but CPU-consuming) things, that is also why it is interesting

The size of the photo is 356 x 400. It takes minutes to render.

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

That is indeed unusual.
I don't have an explanation for this. Maybe you should try the latest binaries posted today.

mackenzieh · **Posted:** Fri Oct 03, 2014 2:27 pm **(#52)**

Ronounours wrote:

That is indeed unusual.slw
I don't have an explanation for this. Maybe you should try the latest binaries posted today.

I have the latest version of G'MIC but I still don't get why the colorize interactive filter is slow.

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

It should be interesting to have an idea of the cause.
Maybe you are running out of memory ? (very unlikely, for this resolution) . Do you run it on Windows, Linux ?
Is there anybody else having this issue ?

mackenzieh · **Posted:** Fri Oct 03, 2014 3:43 pm **(#54)**

Ronounours wrote:

It should be interesting to have an idea of the cause.
Maybe you are running out of memory ? (very unlikely, for this resolution) . Do you run it on Windows, Linux ?
Is there anybody else having this issue ?

I'm running windows 7 64x. GIMP 2.8.10... I don't know if anyone else is having this issue.

adam933 · **Joined:** Dec 10, 2012 **Posts:** 32

I just downloaded and installed gmic 1.6.0.1 from sourceforge for Win/7 64, and there is no "Black & White / Colorize" [interactive].

I would appreciate someone helping me locate it.

Thanks,
adam933

Odinbc · **Posted:** Fri Oct 03, 2014 4:30 pm **(#56)**

In G'MIC / About / Links / List of available plug-in filters.

Oregonian · **Posted:** Fri Oct 03, 2014 4:58 pm **(#57)**

It's going to take me awhile to get the hang of this, but I'm off to a fair start in it.

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

Looks good.
My first line art was a disaster because there were a few breaks or spaces in the black out line so that lets the other colors bleed into the area next to it. I went back and alpha selected it and put a wide black outline then it was perfect.
I am not having as good luck with the photos though, of coarse the one of Elvis turned out pretty good. I tried a few harder ones with more colors after that and they were a disaster.

Oregonian · **Posted:** Fri Oct 03, 2014 5:26 pm **(#59)**

I had to back up to catch that picture of Elvis. :flirt

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

I wondered about that. yes he was a hunk.

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