Hello,
First of all BIG Thanks for Imagen4 and Imagen4 Ultra releases!
They're great, especially with texts, but.. Your APIs return images in low quality for these models, like low-quality JPEGs, it is well seen by moire on 100% view around objects. (average PNG file size is about 400-500KB)
I compared with Imagen3-002, seems there is no such problem there.
Also, I compared with images released on your website - there is no such issue there, so I think you did it for a purpose.
I understand that Imagen 4 is in preview/experimental stage, but it is hard to do a full test, while you return low-quality images from the model.
Maybe there is a way to pass some param to get a better image quality? ( I tried internal quality settings - didnt help much).
Thanks!
Just an example, with overall quality looking good:
If we dive into details: