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Imagen 4 and Imagen 4 Ultra moire / low-quality

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!

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1 REPLY 1

Just an example, with overall quality looking good:

RealTest_1-1748378184894.png

If we dive into details:

RealTest_0-1748378122828.png