In the properties info tab is that information about the actual image properties or the output properties it will be when exported?

Software Natron
1

In the properties info tab is that information about the actual image properties or the output properties it will be when exported?
image

2

It’s the image output from the selected node.

3

Thanks for the reply rodlie. Can you help me with this? Is there somewhere in the program that shows the properties of the actual input file ?

4

Switch to the Controls tab, in the middle-ish of that tab you should see a button named File Info..., click that and a new dialog should popup with the information you need.

5

Thanks again, will check it out right now.

6

Yep that was file info. But I was hoping I could find out what type of alpha channel my file has…premultiplied alpha or unpremuliplied alpha. That’s not in there.

7

Ah, that information will not be listed there (can also only be detected if the file format supports it), this is just output from the backend library used to decode the image.

8

ok . I guess the only way I’ll know is if I export the file as either premultied or unpemultiplied and note it in the metadata from now on. Thank you sir.

9

EXR uses associated alpha, TIFF supports both (check metadata).

10

Thanks again I’ll try both and see what I get. one last thing though… at the node input its showing a alpha type opaque unpremultiplied or premultiplied. is that the actual alpha type or just what natron is reading it as?

11

That is what Natron will assume/use as input (it might not be correct).

12

yes that’s what I thought. Anyway it makes pretty good guesses . I tried 3 files , one paque one with straight alpha and one with premultiplied and it got each one right. I’ll keep in mind though that it may not always be correct