Pixel blending makes pixel-wise segmentation into a more difficult task.

[Jaro93]

Hi,

We're using PNG (but have also tried BMP and TIFF image format) in RectLabel. The result at high zoom level is that it seems like there is a gradient added to the centre of each pixel going outwards. This makes pixel-wise segmentation more difficult to achive accurately.

For example, zoomed in image in RectLabel:

Compared to a zoomed in image in MacOS's Preview app:

It's important for us to create accurate labels, and this is a bit of a hinderance. Could you please remedy the issue ASAP? Thanks.

[ryouchinsa]

Thanks for writing the issue.

We are using linear filter for the image and the mask. white/black box: image cyan: mask

We can change to nearest filter.

Does this work for you?

[Jaro93]

That would be fantastic, thank you!

[ryouchinsa]

We submitted the new update to Apple. When the new update is released, we will let you know. Thank you.

[ryouchinsa]

The new update version 3.02.3 was released. To show the new update on Mac App Store, press command + R to reload.

• Improved image and mask filter from linear to nearest so that you can label pixel-wise mask when high zoom.

Let us know your feedback.

[Jaro93]

Thank you so much!