Downscaling by full pixels and strange behavior when rounding values

[DGee]

I'm running some tests in order to try to exactly match the sharpening applied by photoshop when downscaling an image, so that I can have the exact same results when using photo.

What I noticed is Photoshop rounds up the pixels and Affinity uses decimals.

How can I have Affinity Photo use full pixels when downscaling?  

I believe what's actually happening is upon export Affinity photo is rounding down the value instead of up. My image is 1007,8 pixels tall and Photoshop is correctly rounding up to 1008 and affinity is rounding down to 1007 which is far less desirable and accurate.

Thanks

D

[DGee]

If I manually downscale an image before exporting to jpeg the output gets rounded up to the nearest pixel.

However if the I downscale using the export dialog box it rounds down to the lower pixel.

This is bad and hopefully can be fixed in the next update.

[Pšenda]

12 hours ago, DGee said:

However if the I downscale using the export dialog box it rounds down to the lower pixel.

Try Export Persona with export Slice settings "1008w".