[poppler] Splash output quality (rotated/downsampled images)

[Albert Astals Cid]

El Dimarts, 19 de juny de 2012, a les 17:18:56, Bill Williamson va escriure:
> I'm interested in improving poppler's splash image rendering. 

Great :-)

> I've noticed
> it doesn't do a great job with rotated or downscaled images. You can see a
> lot of jagged edges and aliasing issues depending on the rescaling factor.
> This is true even with the command line anti-aliasing options enabled.
> 
> At first glance, it looks like we are using Bresenham's line drawing
> algorithm to draw lines from image objects onto the output image. Does
> anyone have any suggestions or good ideas for improving this code? I was
> thinking of bicubic interpolation on the image objects to smooth things out
> a bit, but wanted to elicit some advice before starting.

Is that the result of drawing an image or a line?

As far as i remember splash does not do intra-image "smoothing" when 
rotating/expanding an image.

Cheers,
  Albert

> 
> -Bill