Re: [Gimp-user] Single pixel selection

[JLuc <jluc no-log org>]

Le 02/07/2018 à 00:03, Ofnuts a écrit :
> Slightly more complex, but more powerful:
> - Select>To path. Small islands oif pixels will create small path strokes
> - use ofn-path-filter-strokes to remove the small strokes (several criteria available: length of perimeter, 
> area...)
This is interesting so I installed the plugin from
        https://sourceforge.net/projects/gimp-path-tools/files/scripts/
and a new option appears now at the bottom of Image menu : "Fit canvas to path"
with 2 sub-options : "tight" / "with margin"

But i couldnt find the "length of perimeter" or "area" criteria.
Where are they to be found ?

The following steps can also be achieved with standard selection edit :

> - Select>From path will recreate more or less the same selection, without the small bits, for more accuracy
> - Select>Grow that selet by one pixel
> - Intersect with the initial selection (this assumes you saved it first)

JL, on gimp 2.10.2 ubuntu 17.10

> ofn-path-filter-strokes is available here: https://sourceforge.net/projects/gimp-path-tools/files/scripts/
>
>
>
> On 06/28/18 10:41, moon wrote:
> > Hello.
> >
> > When editing drawings, I often need to select specific areas to colorize or
> > copy.
> > I do this with combination of tools like "Free select", "Fuzzy select" & "Select
> > by color".
> >
> > Often though there are individual pixels of varying colors scattered about that
> > require being added or removed from the selection.
> >
> > The QuickMask is not so useful because the red color means I can't easily
> > distinguish the pixels I am interested in.. I have to turn off the QuickMask to
> > identify the pixel, turn it on to (de)select it etc.
> >
> > I've played with the QuickMask opacity and color, but it doesn't really help
> > since typically these pixels are very close in color to the selection &
> > background.
> >
> > I've tried a fixed size 1x1 Rectangular Select Tool, but this is clumsy since
> > you have to drag to get the selection to start.
> >
> > It's also clumsy using the Free select tool to lasso a single pixel.
> >
> > Anything else I could try?
> >
> > If not, I will try to write a python plugin. I'm thinking of basing it on a
> > fixed 1x1 Rectangular Select Tool... does this sound feasible/sensible?
> >
> > Cheers,
> > Moon
>
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