Re: [Gimp-gui] Improving Export



Hi,

On 2015-10-13 06:16, Liam R E Quin wrote:
On Tue, 13 Oct 2015 00:12:49 +0200
Jehan <jehan girinstud io> wrote:

There have been a recent feature request about having the open dialog as
a dock rather than a dialog:
https://bugzilla.gnome.org/show_bug.cgi?id=756197

Inkscape does this - I actually hate it, because (1) it takes up a lot
of space when i dont' want it, and (2) it doesn't go away when the
drawing is exported.

I see. Well there are other ways to tell whether an image is exported though. There could be a message in the export box for instance saying "Last export at 14:45 to /some/path/bla.png". For the space, if the UI is well thought, this could also be managed.

Anyway that's a good feedback. It makes some food for thoughts.

So I go into the folder and check the file is
there, outside Inkscape. Just as now, in GIMP, to know an image has
been exported, I click on the [x] on its tab (in single window mode,
or close its image window) and the dialogue box tells me whether the
image has been exported.


My current workflow is to save an image at several sizes - very common
for Web work, e.g. for "download" and "preview" and "thumbnail"
versions of an image..

1. save archival PNG version (and also XCF if there's more than on elayer)
2. scale down
3. sharpen (e.g. unsharp mask; the older "sharpen" filter was actually
slightly better for this for
   some of my images)

Just a small off-topic remark: is there a bug report about this, and/or is it known by Mitch or other devs? If the former algorithm was performing better in some condition, this could be of interest and maybe should be fixed, no?
Especially if the old filter is meant to disappear in the end.

3. file->export brings up file chooser, then options
4. experiment with preview and options to minimize file size
5. enter quality settings into the JPEG comment field
6. OK, export the file
7. undo the sharpen
8. undo the scale
9. gaussian blur
10. scale down further
11. sharpen; may need to go back to 9 and repeat until OK
12 export again
13. undo lots,
14, gaussian blur more
15 scale down to 200 pixel preview
etc etc

It's possible to get OK results with nohalo or lohalo scaling instead
of cubic, and not need to sharpen, but then it can easily take 10
minutes to scale an image instead of a matter or seconds.

Its pretty common to sharpen after scaling down. You can't re-open a
JPEG file and sharpen it afterwards, as (1) you'd lose the benefits of
the convenient workflow, and (2) it'll sharpen and increase the JPEG
compression noise, and (3) you'll end up with a much larger file
because of the increased high-frequency components around the
compression artifacts. Although you could export to PNG and then
reopen, I don't see any point - I'd stick with the "scale and undo"
workflow.

Hope this helps,

It does. That's a pretty concrete and detailed workflow, the kind that many of us have had to do once in a while (of course some more than others, like yourself), and which show that the export process can definitely be improved!
Actually I think I'll link the feedback in the wiki.


Jehan

Liam (ankh)


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