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  Odd colours in GIMP 2.9.6
Posted by: pdev - 10-07-2017, 02:11 AM - Forum: Gimp 2.10 - Replies (5)

I've just installed GIMP 2.9.6 on my MacBook.

Can anyone please explain this odd behaviour in the Colour Picker dialog box?

ffffff is supposed to be white!

   

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  Alpha to selection issue
Posted by: sputnik - 10-06-2017, 06:25 PM - Forum: General questions - Replies (5)

Please help, not sure whats going on. Alpha to selection creates strange behaviour  Huh 

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  How to change a script to work with alpha channel?
Posted by: mholder - 10-06-2017, 03:17 PM - Forum: General questions - Replies (5)

There is a script called 'tile_shuffle.scm', and I want to edit it a little.

This script does not work with alpha channels.  Is there any way to edit it to shuffle tiles with alpha values?
 

Here's the script:

Code:
; tile_shuffle.scm
; by Rob Antonishen
; http://ffaat.pointclark.net

; Version 1.0 (20090118)

; Description
; Shuffles tiles of the image

; License:
;
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 2 of the License, or
; (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
; GNU General Public License for more details.
;
; The GNU Public License is available at
; http://www.gnu.org/copyleft/gpl.html
(define (script-fu-tile_shuffle img inLayer inX inY)
(let* (
        (width (car (gimp-image-width img)))
        (height (car (gimp-image-height img)))
        (inX (min inX width))
        (inY (min inY height))        
        (xTiles (trunc (/ width inX)))
        (yTiles (trunc (/ height inY)))        
        (tile1 0)
        (newlayer 0)
        (x0 0)
        (y0 0)
        (x1 0)
        (y1 0)
        (counter 0)
        (swap 0)
        (temp 0)
        (tilelist (cons-array (* xTiles yTiles) 'double))
        (mode (car (gimp-layer-get-mode inLayer)))
        )

    (gimp-context-push)
    (gimp-image-undo-group-start img)
    ; set up progress bar
    (gimp-progress-set-text _"Shuffling Tiles")
    
    ;fill list
    (while (< counter (* xTiles yTiles))
    (begin
        (aset tilelist counter counter)
        (set! counter (+ counter 1))
    )
    )
    
    ;shuffle list
    (while (> counter 1)
    (begin
        (set! swap (rand counter))
        (set! counter (- counter 1))
        (set! temp (vector-ref tilelist counter))
        (aset tilelist counter (vector-ref tilelist swap))
        (aset tilelist swap temp)
    )
    )

    ;create a working layer
    (set! newlayer (car (gimp-layer-new-from-drawable inLayer img)))
    (gimp-image-add-layer img newlayer (car (gimp-image-get-layer-position img inLayer)))        
    (gimp-layer-set-mode newlayer NORMAL-MODE)

    ;cut and paste tiles based on the shuffled array
    (set! counter 0)
    (while (< counter  (* xTiles yTiles) )
    (begin
        (gimp-progress-update (/ counter (+ (* xTiles yTiles) (if (> (remainder width inX) 0) yTiles 0) (if (> (remainder height inY) 0) xTiles 0) )))  ;update progress bar
        (set! x0 (* (* (remainder counter xTiles)) inX))
        (set! y0 (* (trunc (/ counter xTiles)) inY))

        (set! x1 (* (* (remainder (vector-ref tilelist counter) xTiles)) inX))
        (set! y1 (* (trunc (/ (vector-ref tilelist counter) xTiles)) inY))
        
        (gimp-rect-select img x0 y0 inX inY CHANNEL-OP-REPLACE FALSE 0)
        (gimp-edit-copy inLayer)
        (set! tile1 (car (gimp-edit-paste newlayer FALSE)))

        (set! tile1 (car (gimp-drawable-transform-2d-default tile1 x0 y0 1 1 0 x1 y1 FALSE 0)))
        
        (set! counter (+ counter 1))
    )
    )    
    (gimp-floating-sel-anchor tile1)

    ;edge tiles
    (if (> (remainder width inX) 0)
    (begin
        (set! tilelist (cons-array yTiles 'double))
        (set! counter 0)
        ;fill list
        (while (< counter yTiles)
        (begin
            (aset tilelist counter counter)
            (set! counter (+ counter 1))
        )
        )

        ;shuffle list
        (while (> counter 1)
        (begin
            (set! swap (rand counter))
            (set! counter (- counter 1))
            (set! temp (vector-ref tilelist counter))
            (aset tilelist counter (vector-ref tilelist swap))
            (aset tilelist swap temp)
        )
        )

        ;vertical edge
        (set! x0 (* xTiles inX))
        (set! x1 (* xTiles inX))
        
        ;cut and paste tiles based on the shuffled array
        (set! counter 0)
        (while (< counter yTiles)
        (begin
            (gimp-progress-update (/ (+ counter (* xTiles yTiles)) (+ (* xTiles yTiles) (if (> (remainder width inX) 0) yTiles 0) (if (> (remainder height inY) 0) xTiles 0))))  ;update progress bar
            (set! y0 (* counter inY))
            (set! y1 (* (vector-ref tilelist counter) inY))
        
            (gimp-rect-select img x0 y0 (remainder width inX) inY CHANNEL-OP-REPLACE FALSE 0)
            (gimp-edit-copy inLayer)
            (set! tile1 (car (gimp-edit-paste newlayer FALSE)))

            (set! tile1 (car (gimp-drawable-transform-2d-default tile1 x0 y0 1 1 0 x1 y1 FALSE 0)))
        
            (set! counter (+ counter 1))
        )
        )
        (gimp-floating-sel-anchor tile1)
    )
    )

    ;edge tiles
    (if (> (remainder height inY) 0)
    (begin
        (set! tilelist (cons-array xTiles 'double))
        (set! counter 0)
        ;fill list
        (while (< counter xTiles)
        (begin
            (aset tilelist counter counter)
            (set! counter (+ counter 1))
        )
        )

        ;shuffle list
        (while (> counter 1)
        (begin
            (set! swap (rand counter))
            (set! counter (- counter 1))
            (set! temp (vector-ref tilelist counter))
            (aset tilelist counter (vector-ref tilelist swap))
            (aset tilelist swap temp)
        )
        )

        ;horizontal edge
        (set! y0 (* yTiles inY))
        (set! y1 (* yTiles inY))

        ;cut and paste tiles based on the shuffled array
        (set! counter 0)
        (while (< counter xTiles)
        (begin
            (gimp-progress-update (/ (+ counter (* xTiles yTiles) xTiles) (+ (* xTiles yTiles) (if (> (remainder width inX) 0) yTiles 0) (if (> (remainder height inY) 0) xTiles 0))))  ;update progress bar
            (set! x0 (* counter inX))
            (set! x1 (* (vector-ref tilelist counter) inX))
        
            (gimp-rect-select img x0 y0 inX (remainder height inY) CHANNEL-OP-REPLACE FALSE 0)
            (gimp-edit-copy inLayer)
            (set! tile1 (car (gimp-edit-paste newlayer FALSE)))

            (set! tile1 (car (gimp-drawable-transform-2d-default tile1 x0 y0 1 1 0 x1 y1 FALSE 0)))
        
            (set! counter (+ counter 1))
        )
        )
        (gimp-floating-sel-anchor tile1)
        
    )
    )

    (set! inLayer (car (gimp-image-merge-down img newlayer  EXPAND-AS-NECESSARY)))
    (gimp-layer-set-mode inLayer mode)
    
    (gimp-progress-end)
    (gimp-image-undo-group-end img)
    (gimp-displays-flush)
    (gimp-context-pop)
)
)


(script-fu-register "script-fu-tile_shuffle"
                    "<Image>/Filters/Distorts/_Tile Shuffle..."
                    "Shuffles image tiles"
                    "Rob Antonishen"
                    "Rob Antonishen"
                    "Jan 2009"
                    "RGB* GRAY*"
                    SF-IMAGE       "Image"         0
                    SF-DRAWABLE    "Drawable"      0
                    SF-ADJUSTMENT  "Tile X Size"          (list 100 4 1000 1 10 0 SF-SLIDER)
                    SF-ADJUSTMENT  "Tile Y Size"          (list 100 4 1000 1 10 0 SF-SLIDER)
                    )

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Music Help with editing an image like The National album art
Posted by: pter86 - 10-06-2017, 02:56 PM - Forum: General questions - Replies (3)

Hello,


I was hoping somebody could advise me on how to create a similar effect to the duotone images from the new National album Sleep Well Beast.

I would like to create a similar blue toned image like the one attached. Any advice appreciated.

Thank you [Image: smile.gif]

   

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Tongue Gimp makeup
Posted by: gbarkovalev - 10-06-2017, 11:46 AM - Forum: Gallery - Replies (1)

[Image: 9cSHyHX.jpg]

Angel

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  cut shapes out of digital paper
Posted by: kbrown2509 - 10-04-2017, 11:18 PM - Forum: General questions - Replies (1)

Hi, I am very new to GIMP and I am wanting to use it for digital scrapbooking. I have downloaded some papers and elements and can add them to my photos to create a page.  What I want to do now is to create a shape (flower) or trace an existing one and then cut it out of my exisiting digital papers.  Can anyone advise how this can be done.  Cheers

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  The beginning of the end
Posted by: Ofnuts - 10-04-2017, 07:48 PM - Forum: Gimp-Forum.net - Replies (12)

Plenty of new and very active users on GimpForums

[Image: srGEeA2.png]

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  clone tool in xubuntu 16.04
Posted by: petter5 - 10-04-2017, 02:49 PM - Forum: General questions - Replies (2)

clone tool in xubuntu 16.04

Hi ! My first post to this forum. When using windows, the clone tool works as expected. Using Xubuntu 16.04 - the clone tool does not perform any clone operation after pressing ctrl+click as usual and start to clone - you can see the +is following, but the area to clone does not fill up with the cloned area.

According to google search "xubuntu show mouse position on Control" there could be due to a mouse pointer setting, but really - I have been unable to find any solution to get this to work. Since I prefer Linux 99% over windows, I would appreciate help to get this to work also under Ubuntu.

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  Cropping - Custom Crop Guides
Posted by: SpiDeeWebb - 10-04-2017, 07:33 AM - Forum: General questions - Replies (5)

Hello All,

Bottom Line Up Front: I want to create a new cropping guide for passports.

I'm having a little trouble with terminology. 

I can't figure out what the heck developers refer to these as.

I'm seeing under the presets they're just referred to simply as 'guide center-line' 'guide rule-of-thirds.'
I thought it'd be a simple matter of loading it up in GCC searching the right term, and playing around with it.

I just can't for the life of me find them to begin with.

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Sad Strange Filter Behaviour - Filter GUI not interacting
Posted by: SamPat - 10-03-2017, 07:37 PM - Forum: Installation and usage - Replies (4)

Hey Guys and Gals,

I've got a strange problem I couldn't find the answer to on the internet.

I have a new layer with some text and select that text to treat it with a gaussian blur. But when I select the filter in the filter dropdown menu I cannot interact with the filter GUI. I can't check or uncheck the preview box and interact with the parameters. I even cannot exit the window via the "cancel" button, only by pressing escape.

Restarting my mac or reinstalling GIMP didn't work so now I'm stranded. 

Somebody knows anything?

Kind Regards

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