Re: [ft-devel] [08/08] gamma correction issues with FreeType

[another gol]

No, I'm not talking about a whole pixel line spread over 2 pixels, I'm talking about dimmed fonts due to the fact that a stem is smaller than a pixel in width.

It's not a technical problem at all, it just seems to be how most popular fonts are designed, stems a little thinner than a pixel at small, screen-size sizes.

The only solution would be something similar to hinting, but ensuring widths of at least 1 pixel, not actually snapping anything to pixels, just ensuring a minimum width.

My quick & dirty solution was to play with gamma at small sizes.

Of course, hinting may already deal with this (not sure if FT's hinting does, because it snaps only one side of lines), but you don't necessarily want hinting (I'm only using vertical hinting).

On Tue, Oct 29, 2013 at 10:46 AM, Antti Lankila <address@hidden> wrote:

Werner LEMBERG <address@hidden> kirjoitti 29.10.2013 kello 11.00:

A problem I have however is that a small or average sizes, at low
PPI, most popular fonts have stems slightly thinner than a full
pixel, & thus text can look too light.

Hmm, if the energy gets distributed evenly (this is, the gamma is
correct), this shouldn't be a problem since the gray values of, say,
two 50%/50% lit pixels sums up to 100% as if it were a single black
pixel.