Auto quantization during write

[martinKing71]

Hi,

Is there a way to write out images and not have them auto quantized?

I'm splitting a large Photoshop file up into its individual layers and some of them are just grey scale layers and are automatically saved out as 8bit png's. I would like to save all the layers out as 24 / 32 bit files and control this myself - the reading library I'm using can read in 24/32 bit but not 8 bit.

Regards,

Martin.