This work for a few images, but let's say that your app has 100's images. Your
package / SA has limits.
I found it easy to settle on a routine. Images 400 X 400 or less I produce at
800 X 800 and run them the TinyJPG and get optimized. So the 2X size work well,
in fact in "mandatory" on small image (100 X 50) from full screen images (414 X
736) the 1X, otherwise "eagle eyes" complain
Of course it is not optimal, but from user feedback; they only complain "the
image a fuzzy" when we take an item below a certain rect (400 X 400) AND
optimize it AND display a 1X... when the image is bigger, I suspect treatment
of edges and sharpness are still "acceptable" to the eye -- after optimization,
even my eagles eyes users
TinyPNG.com I have not found any this better. My own command line tool (run
it through ImageMadic and mozjpg) never come close to TINYpng.com. Works so
well that save in photoshop at the native rect (2X for image below 400x400 are
save a 800 X 800) and save out at 100% quality on Photoshop .
Drop in TINYpng.com (does jpeg as well) and look at savings!\ And test them
side by side with the originals.
Of course, is you are doing Ansel Adam coffee book style photographic
representations.... that’s a different story. But my users are interest in the
content of the photo -- "the documentary" aspect. They hardly notice the photo
quality (except for small images, where I think optimization "breaks" the photo)
Brahmanathaswami
On 6/12/18, 10:45 AM, "use-livecode on behalf of Mark Waddingham via
use-livecode" <use-livecode-boun...@lists.runrev.com on behalf of
use-livecode@lists.runrev.com> wrote:
TL;DR: if you can find a tool which can upscale your images acceptably to
2x or even 4x - do so - keep the original
image as foo.png and the upscale ones as foo@2x/4x.png and set the filename
of the image with foo.png. The engine should do the rest (from the using as
much as it can pixel data wise at least point of view).
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