236 reputation
13
bio website
location Toronto, Canada
age 53
visits member for 3 years, 4 months
seen Jul 9 at 20:21
Just another dev hack.

Jan
14
awarded  Yearling
Jan
12
answered targeted setting of transparency
Mar
7
awarded  Commentator
Mar
7
comment Preparing photographs for black and white photocopiers
Filter→Sketch→Halftone pattern... works pretty okey-dokey on greyscale too; both scanline and dot patterns photocopy well.
Mar
2
comment What is the difference between DPI (dots per inch) and PPI (pixels per inch)?
Printing a 300ppi (print resolution) image on a 1200dpi printer would mean that there are 16 dots of each colour (with a low "depth" for each dot) to represent each of those pixels. While printer/driver systems are pretty good at dithering, that's still a pretty poor gamut. That's why digital printers with more than four ink values (lighter blacks, light cyan, light magenta and often one or more pure colours that would normally be mixed) can print so much better than a $50 1200dpi four-colour all-in-one—each of the dot groups used to print a pixel can represent a much larger range of tones.
Mar
2
comment What is the difference between DPI (dots per inch) and PPI (pixels per inch)?
It's probably worth mentioning as well that each pixel in an image can be any colour in the working colour space, dots (especially in digital printing) are generally far more limited. A 1200 dpi printer can print 1200 dots per inch (usually 1200 dots per inch per colour), but each of those dots is either an on/off or available in a limited number of sizes (usually four or fewer). That means that you need a group of dots taken together to accurately create the appearance of a pixel's colour. (cont'd)
Mar
2
comment How can I achieve metallic gold effect? I need to laser-print golden fonts using an OKI C9650 printer
I'd almost forgotten about that—I used to do double prints (inkjet followed by laser) quite often, either to get that "hit of varnish" look for tone-on-tone or to use a foil (although I tended to use a hot laminator rather than a (waxing) iron). Take some slack.
Mar
1
comment How can I achieve metallic gold effect? I need to laser-print golden fonts using an OKI C9650 printer
but the secret to metallic printing is metal. That can be an ink with something like shell gold in it (in an offset or letterpress print), foil stamping, or a thermal dot-matrix process either using a transfer ribbon or (hyper-expensive) metallized toners.
Jul
28
awarded  Supporter
May
27
comment Paint Shop Pro 7: how to create a new palette from my image?
@E100: The reduction to a color set that can be described in 8 bits (the lookup address) is the reduction in depth we're talking about. You young uns might not remember it, but there was a time when 8 bits was all we had to work with (VGA), and introducing a different pallette would change the display adapter lookup table. In the 24-bit (and higher) world, you can display images with multiple pallettes on the same screen, but it hasn't always been that way. Try going to your display settings and reducing the color depth to 256 colors (if you can) to see the difference.
May
27
comment Inept knowledge about dpi and ppi,please help?
Oh, and the screen frequency is (and always has been) stated as LPI (or simple "xxx-line" in North America, with the "per inch" being assumed) when discussing halftone -- a 200-line screen is extremely fine printing (think coffee table book).
May
27
comment Inept knowledge about dpi and ppi,please help?
@DA01: That's 600 ink dots per inch, not 600 pixels per inch. DPI and PPI, despite what the accepted answer says, are not, and never have been, interchangeable in the printing industry. If the printer is asking for 600 DPI for a billboard, he's asking for a RIP, not an image file, and that RIP is based on a printer output resolution of 600 DPI. And when I said it used to be considered hi-res, 300 DPI was "standard" droplet density -- and giclée printers would make that density look smooth enough for final output for art prints (giclée wasn't always synonymous with inkjet).
May
26
answered Paint Shop Pro 7: how to create a new palette from my image?
Mar
26
awarded  Teacher
Mar
26
answered Inept knowledge about dpi and ppi,please help?
Dec
19
comment How to print photographic postcard/business cards
I thought you'd said you'd included bleed space in the original. Pattern fill is how I do it. Just sayin'.
Dec
19
comment How to print photographic postcard/business cards
Copy and paste? Use a pattern fill at 100% (just a suggestion).