Rendering onto background image

[John Houston]

Hi,

I previously posted a message regarding
rendering onto a background image and indicated
that, to blend,  I was using :

(pen.red( x) + background.red( 1-x)) /x

where x is the number in the glyph pixmap ( 0-4),
for each color component

I am acutally using

(pen.red( x) + background.red( 4-x)) /x

and getting results that are not as good as I would
like ( see attachment for example )

Any input would be appreciated,

Thanks,
John