[Shotwell] Red eyes zoom - suggestion
eric at yorba.org
Fri Sep 23 11:57:00 PDT 2011
On Fri, Sep 23, 2011 at 8:06 AM, Lu Timdale <lutimdale at yahoo.com> wrote:
> While it's good to have zoom, red eyes a lot of the time are NOT round due
> to eylids. So the tool as is is frustrating to use. Also, it`s annoying
> and slow to have to select each eye separately.
> Currently, the red eye zoom expects to remove the red from the entire area
> that is denoted by the circle created with the tool.
> This is incorrect behaviour.
> The red eye tool should be smart enough to only apply the correction to the
> area within the denoted circle that is actually RED. This is quite simple
> to do. Simply make an irregular mask based on a red filter. Once that is
> done, take the original image section corresponding to the new mask (a
> subset of the denoted circular section), and correct the redness. This
> makes it quite a lot easier to fix all manner of irregular shapes. It
> removes any red from a subsection of the image (leaving other valid red
> areas... jackets/scarves true). You really only need to define a range of
> colour which is considered red to create the irregular mask.
> This also paves the way to selecting both eyes at the same time, or even
> using a square area... it will be irrelevant what the shape the user denotes
> since only the red areas within that shape will be modified. All red-eye
> tools I have used before did this at least.
> In addition, this paves the way for enhancing this to autocorrect red-eye
> for the entire picture, with one click and not specifying an area at all...
> the picture is the area that the algorithm would be applied to. Since this
> will possibly cause more collisions with other valid red ares, it would
> likely need to be enhanced. You simply need to marry the above to eitherto
> a) face detection to make changes only to anything red on a face
> b) shape detection to make changes only to anything resembling a series of
> shapes (circular, oval, partially closed bottom, partially closed top, etc.)
Yes, that would be a huge improvement. Apparently you've brought this issue
up in the past since you're mentioned in the ticket:
We also have this ticket:
By the way, we always accept patches for these kinds of things!
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