I am responding to a few different posts in this thread in one mail - Richard Lewisohn wrote:
> I would have thought that a more relevant 'real world' test would be to > see if it is better to 'upres'... Thomas Holm replies: >> It depends on what you are testing. I would still start with the vector approach and find the optimal printer resolution (optimal being lowest possible with results comparable to higher res). << Agreed - this is what my post was referring to. Rasterizing vector data to mixed resolutions of the test PPI at the same output size seems to be the best way to me. But one will need to keep in mind that image content plays a big role, even if one finds the magic number. Different output processes may all have different rules and issues that one may need to explore if after hard answers. ====== Jorge Parra writes: >> (snipped)...At least that is my current understanding on this subject. Please enhance or correct me if this is wrong. << My comments were in relation to general testing methodology and what is taking place behind the scenes with the pixel data before output - which will have a big bearing on the results. As you mention, there are a host of inkjet related issues as well. My post and the original that spawned this thread - have more of a bearing in prepress/press and halftones and lineart with film or CTP (my background) - although there is obviously some overlap among these output mediums in issues and results. >> Effectively, all these tests can only provide a subjective approach to what is best FOR EACH OF US, but again, that is one of the beauties of Digital, the ability of having all of us using the same machines but obtaining altogether different results << My point was that one may mislead themself due to the testing method if not careful. This is why rasterizing a vector file overcomes so many variables in the file prep. Regards to all involved in this thread, Stephen Marsh. =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
