Comment 0 for bug 1652770

The component transfer filter primitive seems to have a bit of inaccuracy at the rendering.
Using it as a base for a threshold filter, the discrete mode input doesn't chop the luminance levels at 50% when it is set to 0 1, or when linear input is chosen with 10; -5 settings.

Have a look at this simpe test file:
https://openclipart.org/detail/269661/component-transfer-compare

It shows several errors in one file.
0.91 renders the filter with a solid fill on the right.
Zooming into the top right corner of the image
-pattern fill does not render after zooming in more than 3200%
-checkerboard background does not render from 9051%
-filtered object's part intended to be transparent renders solid black at 12800%
-at any zoom level the diagonal step in the fill from the filter doesn't go straight into the square's corner as it should.