i using live paint paint cartoon character illustrations. artwork brought illustrator cs3 , live traced. convert live paint group , use paint bucket fill. looks fine no matter how zoom in. if bring ai file photoshop cs6 can see thin white line between black line art , fill. noticeable black meets black. can see in file previews while browsing through files. if white line cannot seen in illustrator file ok? did upgrade cs6 if make difference.
thank help.
if white line cannot seen in illustrator file ok?
without knowing specifics,nobody knows.
"okay" what?
if looks okay in illustrator, it's okay viewing in illustrator.
if export of not okay in photoshop @ 1:1 or higher zoom, it's not okay whatever you're going raster image.
if it's printed low-res composite printer, may okay, because printer may not able resolve whitish pixels.
if it's printed commercial (color-separated) reproduction, may not okay, depending on scale @ printed, , on other considerations partially described below.
the autotrace routine not build traps. typically, when color-fill cartoon line art manually, don't make shapes define fills merely "kiss" black line work, default treatments of stupid autotrace. black line work typically overprints fills, thereby creating printing traps.
suppose portion of cartoon hand-drawn closed circle. black line work irregular; varies in width, having been drawn marker or brush. circle colored in medium green. there no sloppy gaps in original between green , black.
you scan , autotrace it. unless apply deliberate care make otherwise, autotrace going create compound path, filled black, , no stroke; , green simple path (hopefully) "kisses" (abuts) black path. adobe's on-screen antialiasing of edge 2 colors abut may or may not cause monitor display faint whitish or grayish sliver between 2 colors.
similarly, photoshop's rasterization of it, or rasterization of raster export filter may same, , may result in off-color pixels along edge. (your description of scenario kinda raises question of why auto-tracing you're going rasterize in photoshop anyway. why that? why not work scan in photoshop?.)
so let's leave photoshop out of picture , assume autotracing because want vector artwork. zoom way in see if whitish sliver enlarges. doesn't, assume it's aberation of illustrator's on-screen antialising. , tells you're in clear. you? not fast.
let's assume artwork destined commercial (color-separated) printing. further assume color of autotraced black 100% k, , color of autotraced green 100y 50c. 3 inks involved. none of 3 inks shared between 2 objects. if paths do, in fact, abut, there no "wiggle room" built in minor alignment shifts aways occur on press.
bottom line: if determine common antialiasing aberations occur on-screen in adobe apps that—just onscreen aberation, not mean file suitable for commercial color-separated reproduction.
first, need understand autotracing not one-click, instant "conversion" of raster image vector artwork far many think be. else, don't launch program illustrator, start autotracing things willy-nilly without understanding what's going on. anyting else, can use autotrace feature intelligently or...well...not.
you have options. illustrator provides auto-trapping feature. read on in documentation understand it's about. alternatively, can expand results of autotrace, select black linework , apply composite color includes 100% k , reasonable percentages of c, m, , y (a so-called "rich black"). or,depending on artwork , desired results, may consider doing autotrace centerlines have stroked paths, not filled paths linework. way, using flood fill (so called livepaint) cause auto-created fill objects extend paths, not edges of strokes. set linework overprint.
at rate, if doing professionally, need read on principles , practices of trapping , color separation.
jet
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