png export issue

[GlasBeard]

HI

When creating a faded circle (image 3) in GIMP on Mac, when I import to another programme (Galaxy Watch Designer/Studio) the file comes in distorted (image 2 enclosed)

When I use GIMP on Windows creating exactly the same way, the image comes in correctly.

On the preview import dialog the image looks fine no matter where created.

Any ideas?

[rich2005]

Sorry no way of trying out in  Galaxy Watch Designer/Studio - whatever that is. The image you posted - image3.png - is from your Mac ?

It is 16 bit precision, you could try again with 8 bitImage -> Precision then set 8 bit

The only other possibility is if somehow the Mac Gimp imposes a different x / y pixel resolution. You can check by toggling  View -> Dot-forDot on off. 

This the same image 360 x360 pix  with the y resolution half the x resolution. Gimp is a pixel editor dot-for-dot is normally on. Dot-for-dot-off gives a real-world view.

   

Otherwise - do not know, some strange MacOS thing.

[Ofnuts]

Your 2nd image is a 16-bit PNG, did you try to save it as a much more frequent 8-bit PNG?

[Ofnuts]

(07-30-2020, 03:08 PM)rich2005 Wrote: Sorry no way of trying out in  Galaxy Watch Designer/Studio - whatever that is. The image you posted - image3.png - is from your Mac ?

It is 16 bit precision, you could try again with 8 bitImage -> Precision then set 8 bit

The only other possibility is if somehow the Mac Gimp imposes a different x / y pixel resolution. You can check by toggling  View -> Dot-forDot on off. 

This the same image 360 x360 pix  with the y resolution half the x resolution. Gimp is a pixel editor dot-for-dot is normally on. Dot-for-dot-off gives a real-world view.



Otherwise - do not know, some strange MacOS thing.

My thoughts exactly but the according to ImageMagick's identify the 2nd image from the OP has the same width/height in pixels, and a 72PPI resolution both ways too.

[GlasBeard]

(07-30-2020, 07:47 PM)Ofnuts Wrote: Your 2nd image is a 16-bit PNG, did you try to save it as a much more frequent 8-bit PNG?

Well, what do you know, it works with 8bit!  Genius, thank you!!