[Digikam-devel] [Bug 135048] New: easy comparing similar pictures using a lighttable

[Oliver Dörr]

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           Summary: easy comparing similar pictures using a lighttable
           Product: digikam
           Version: 0.9.0-beta2
          Platform: unspecified
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: oliver doerr-privat de


Version:           0.9.0-beta2 (using KDE 3.5.4 Level "a" , unofficial build of SUSE )
Compiler:          Target: i586-suse-linux
OS:                Linux (i686) release 2.6.13-15-default

Hi.

i have sometimes similar pictures and try to find the best of  them. A "lighttable" would be very handsome for this job. I think of the following workflow...
1. Open the Lighttable as a small window (perhaps a sidebar)
2. Use drag and drop to put the photos in there (normally 3, 4, 5 or so)
3. Resize the Lighttable to full screen -> the thumbs of all pictures in there will be increased to a size that they all fit in the lighttable
4. I select some of the pictures using the mouse for a closer look and use the wheel on the mouse to increase their preview size -> this leeds to a smaller size for the pictures that i did'nt have selected (would be
really cool, if the unselected pictures move to the border of the window while the selected windows move to the center).

This function would make it much easier to compare pictures manually to find the one that i like best.
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[Gilles Caulier]

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caulier.gilles free fr changed:

           What    |Removed                     |Added
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          Component|general                     |Albums GUI
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[Arnd Baecker]

Yes, I agree, this is a very common situation, in particular
with digital cameras one for example easily takes 10-20 pictures
of a group of people to find just one good shot ;-).

To compare details (like sharpness, ...)
it would be very helpful (essential?) to have something
like "linked zooming". I.e. one images is declared as the "master
image" (default would be the first).
Zooming inside the master image (or any of the others)
also zooms into all the others images
in the light box. Moving around in the master image also
moves the other images accordingly.
Moving around in one of the other images does not affect
the master image (and also none of the other ones);
this would allow to accomodate for shifts in the images easily.

Concerning the interface:
Maybe a layout like a time-line view below, together with the
lighttable above is suitable:


[         ]   [         ]      (+ other variants like 2x1, 1x2,
[         ]   [         ]         3x1, 1x3, 2x2, 3x2, 2x3, 3x3)
[ Image 1 ]   [ Image 2 ]
[         ]   [         ]
[         ]   [         ]
---------------------------------------
[ ... Thumb0 Thumb1 Thumb2 Thumb3 ....]


Then one could select one (or several) thumbs and drag them onto
the lighttable.

Could this be an extension of the F3 view in digikam?

Best, Arnd
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[Arnd Baecker]

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------- Additional Comments From arnd.baecker web de  2006-10-03 19:56 -------
Yes, I agree, this is a very common situation, in particular
with digital cameras one for example easily takes 10-20 pictures
of a group of people to find just one good shot ;-).

To compare details (like sharpness, ...)
it would be very helpful (essential?) to have something
like "linked zooming". I.e. one images is declared as the "master
image" (default would be the first).
Zooming inside the master image (or any of the others)
also zooms into all the others images
in the light box. Moving around in the master image also
moves the other images accordingly.
Moving around in one of the other images does not affect
the master image (and also none of the other ones);
this would allow to accomodate for shifts in the images easily.

Concerning the interface:
Maybe a layout like a time-line view below, together with the
lighttable above is suitable:


[         ]   [         ]      (+ other variants like 2x1, 1x2,
[         ]   [         ]         3x1, 1x3, 2x2, 3x2, 2x3, 3x3)
[ Image 1 ]   [ Image 2 ]
[         ]   [         ]
[         ]   [         ]
---------------------------------------
[ ... Thumb0 Thumb1 Thumb2 Thumb3 ....]


Then one could select one (or several) thumbs and drag them onto
the lighttable.

Could this be an extension of the F3 view in digikam?

Best, Arnd
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[Arnd Baecker]

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------- Additional Comments From arnd.baecker web de  2006-12-12 09:28 -------
A couple of nice screenshots are at
http://www.macworld.com/news/2006/01/08/lightroomfirstlook/index.php
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                 CC|                            |Julien.Narboux inria fr



------- Additional Comments From caulier.gilles kdemail net  2006-12-12 12:49 -------
*** Bug 121311 has been marked as a duplicate of this bug. ***
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[Gilles Caulier-2]

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           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Albums GUI                  |Preview
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[Dotan Cohen-2]

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------- Additional Comments From kde dotancohen com  2007-02-20 01:30 -------
I agree that this would be a killer app. I'm often looking at 4-5 similar pictures that I've snapped with my digital camera. This could save a lot of time.
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Michael.NoSpam gmx de changed:

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             Status|UNCONFIRMED                 |NEW
      everconfirmed|0                           |1



------- Additional Comments From Michael.NoSpam gmx de  2007-02-26 08:58 -------
*** This bug has been confirmed by popular vote. ***
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[Gilles Caulier-4]

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------- Additional Comments From caulier.gilles gmail com  2007-03-06 09:54 -------
Hey guy,

If you want a "light table" tool in digiKam, i need to get some inspirations from LightRoom and others software witch support this feature. Please attach screenshots of this tool in action in this file. Thanks in advance

Gilles Caulier
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------- Additional Comments From mikmach wp pl  2007-03-06 10:25 -------
No screenshot, but link to page demonstrating various form of comparing form in Apple's Aperture:

http://www.apple.com/aperture/compare/index.html

----------------------------------------------------
Producenci "Opowie�ci z Narnii" przedstawiaj�:
Wielka przygoda w �wiecie, w kt�rym wszystko jest mo�liwe!
MOST DO TERABITHII - w kinach od 9 marca!
http://klik.wp.pl/?adr=http%3A%2F%2Fadv.reklama.wp.pl%2Fas%2Fmost.html&sid=1044

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[Arnd Baecker]

This might be a quite good description:
http://www.iview-multimedia.com/mediapro/3_lighttable.php

and also 3 and 8 at:
http://digitalmedia.oreilly.com/2006/11/01/top-ten-aperture-features.html
(BTW: the Loupe mentioned in 7 sounds great ;-).

It seems that a couple of the lighttable tools allow
for free form placement of images etc.
I am not sure if this is really the most important aspect,
as a normal arangement might be enough for the purpose.

However, it is not obvious, what the best realization would be;
some thoughts:
- select a bunch of images in the album view
- invoke the light-table.
  In this one the images shown as large as possible.
  Should this be
   a) a separate full-screen view?
   b) a view, embedded like the one obtained from F3?
   c) should it be (optionally) possible  to see
      the thumbnails as well (in a much smaller size?)
      (See e.g.
      http://www.apple.com/aperture/compare/compare.html)
- linked zooming and panning is important
  (to detect closed eyes, judge sharpness, ...)
- once zoomed in:
  a) do we need small scroll-bars at each image?
  b) A small pop-up thumb, in the lower right corner where
     the scroll-bars (would) meet, to navigate in the image
     (see gimp)
- there has to be a simple way to remove images from the lighttable
  (without deleting them and maybe also with deletion)
- rating should work

Best, Arnd


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[Arnd Baecker]

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------- Additional Comments From arnd.baecker web de  2007-03-06 11:17 -------
This might be a quite good description:
http://www.iview-multimedia.com/mediapro/3_lighttable.php

and also 3 and 8 at:
http://digitalmedia.oreilly.com/2006/11/01/top-ten-aperture-features.html
(BTW: the Loupe mentioned in 7 sounds great ;-).

It seems that a couple of the lighttable tools allow
for free form placement of images etc.
I am not sure if this is really the most important aspect,
as a normal arangement might be enough for the purpose.

However, it is not obvious, what the best realization would be;
some thoughts:
- select a bunch of images in the album view
- invoke the light-table.
  In this one the images shown as large as possible.
  Should this be
   a) a separate full-screen view?
   b) a view, embedded like the one obtained from F3?
   c) should it be (optionally) possible  to see
      the thumbnails as well (in a much smaller size?)
      (See e.g.
      http://www.apple.com/aperture/compare/compare.html)
- linked zooming and panning is important
  (to detect closed eyes, judge sharpness, ...)
- once zoomed in:
  a) do we need small scroll-bars at each image?
  b) A small pop-up thumb, in the lower right corner where
     the scroll-bars (would) meet, to navigate in the image
     (see gimp)
- there has to be a simple way to remove images from the lighttable
  (without deleting them and maybe also with deletion)
- rating should work

Best, Arnd
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------- Additional Comments From Michael.NoSpam gmx de  2007-03-06 19:17 -------
From my point of view a first solution might be as simple as allowing multiple instances of the viewing window (for me two pictures simultaneously are enough).

Another idea is from (amateur) astronomy: To find moving objects within astronomical pictures (of the same area) one quickly shows two figures one after the other. The minor change of the moving asteroid clearly shows up (because this typically is the only difference).

For me a similar approach would be helpful to compare two pictures, show them quickly one after the other, e.g. by pressing spacebar to immediately switch to the next picture or automatically at a selectable frequency (if display is fast enough).
One might extend that idea to display two selectable regions even of the same picture to compare color/brightness...
The advantage of showing the two pictures in sequence is that one has less constraints with monitor size resp. reduced picture size.

Since my proposal only compares two pictures the GUI might be simple, too. Select two pictures from digikam albums and press the (new) compare button. Zooming and moving can be done on each display individually, maybe with an additional sync button to show the same portion of picture1 within picture2.
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------- Additional Comments From mikmach wp pl  2007-03-06 19:25 -------
Here is very good screenshot of Aperture's lighttable:

http://www.apple.com/au/aperture/compare/lighttable.html

And simpler compare form:

http://www.apple.com/au/aperture/compare/compare.html

Note that at least partial solution would be possibility to multiple
instances of ImageEditor.
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------- Additional Comments From caulier.gilles gmail com  2007-04-08 08:59 -------
*** Bug 103351 has been marked as a duplicate of this bug. ***
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[Gilles Caulier-4]

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------- Additional Comments From caulier.gilles gmail com  2007-04-11 09:11 -------
Created an attachment (id=20223)
 --> (http://bugs.kde.org/attachment.cgi?id=20223&action=view)
First Mocup of lighttable in album gui

This is my first moc-up of a possible light table in albumgui.

On the left, a new sidebar tab named "Light Table" appear. It include a
thumbbar view instance (same than showfoto) where you can drag and drop image
from album view. The Light Table view sound like a virtual album where you put
the picture to compares.

On the center, the current Preview mode witch zoom/pan the current selected
picture on light table.

Current problem is than thumbbar view has a fixed size. If this first light
table approach is fine for you, i will working on thummbar to perform auto
resizing of content depending of sidebar size...

Gilles
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[Arnd Baecker]

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------- Additional Comments From arnd.baecker web de  2007-04-11 10:00 -------
I think that this mock-up lacks the most important bit: to compare
several (2, 3, ...) pictures side-by-side, like the second one of #10,
with linked zooming and panning to judge about sharpness etc,
but maybe I am missing something (it is not yet in svn to test, right?)

The thumbbar to the left looks fine to me.

Gilles, I think this will be (at least to me) one of the
most important new features
for digikam and it seems to be a non-trivial one to get it right,
so it might take a couple of iterations until everyone
is really happy with it ;-) ...
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[Gerhard Kulzer]

Am Wednesday 11 April 2007 schrieb Arnd Baecker:
> I think that this mock-up lacks the most important bit: to compare
> several (2, 3, ...) pictures side-by-side, like the second one of #10,
> with linked zooming and panning to judge about sharpness etc,
> but maybe I am missing something (it is not yet in svn to test, right?)

I agree with Arnd, direct comparison is paramount for a light table. (The
other functions [close-up inspection] of a real light table of the past are
covered by the great zoom functions, that work perfect after the last patch).

Gerhard

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