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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

488.0. "Smoothing Algorithms?" by HOUSE::FRACTAL () Wed May 06 1987 21:03

    
    Im thinking of purchasing a 300 dpi dot matrix printer. I got to
    thinking. If a high res Dpaint picture has 640*400, how could i
    take advantage of the increased printer revolution. What I was
    wondering is, has anybody developed an algorithm that will smooth
    a picture to a new resolution. Essentially I want to make this:
    
    XXX
    XXX
       XXX
       XXX
    
    into this:
    
    X
     X 
      X 
       X
    
    Of course I would have to preseve the aspect ratio. I assume that
    this type of smoothing is done all the time on laser printers. 
    Can anybody help me? (By the way the printer is a Nec Cp6 360*360
    dpi.
    
    Thanks,
T.RTitleUserPersonal
Name		DateLines
488.1Yes...HYSTER::DEARBORNTrouvez MieuxThu May 07 1987 09:4614
    There is a new software product, I saw listed in the summer issue
    of INFO magazine that does this.  I'm sorry, I don't remember the
    name of the product.  It was listed in the graphics section of their
    software listing.
    
    This product is for use with Aegis Draw+ files.  It outputs ultra
    high resolution printouts of Draw+ files.  The printouts are supposed
    to rival plotter output, in terms of quality.  They claim that it
    virtually eliminates all jaggies on diagonal or curved lines.
    
    They listed the printers they support.  Again, sorry, my memory
    is cloudy again...I think they said they support most Epson printers
    as well as a few others.
488.2I want my IFFHOUSE::FRACTALThu May 07 1987 22:1011
    
    Thanks for the info. Now if only somebody would make one for IFF
    files. I wonder if EA ever thought of saving the graphics in
    instruction form (PostScript?) This would certainly solve this problem
    of "Jaggies"
    
    Regards,
    
    Ph
488.3here's somethingSZOFNA::CBODINEliving a life of illusionFri May 08 1987 22:258
    There is a product called PLOT-TO-PRINT by High Tech Graphics that
    produces plotter resolution graphics on a dot matrix printer. Takes
    care of the jaggies. The catch is it only works with AEGIS draw.
    Supports CANNON, EPSON, TOSHIBA and C. Itoh.
    
    This may help, it may not.
    
    Chris
488.4Iff-Aegis DrawHOUSE::FRACTALFri May 08 1987 23:085
    
    Thanks for the info...Anybody got an Iff to Aegis Draw?
    
    -ph
488.5ELWOOD::PETERSMon May 11 1987 09:5813
    
    	I would be happy to write a IFF to Aegis Draw, but it is not
    possible. An IFF file contains only the bitmap not the information
    about the objects. A Draw file can be printed at very high resolution
    because it contains a description of each object in the picture.
    
    example:
    
    	How can you tell a 4 pixel square from a 4 pixel circle ?
    
    
    		Steve Peters
488.6Just use lines...HOUSE::FRACTALMon May 11 1987 21:3213
    
    Here's an idea...Instead of descriminating objects such as circles
    why not just use lines. For example, a program would first load
    in the iff bitmap, then it would determine horizontal lines for
    each color. If there was just a point of color, then you could just
    make a line that doesn't go anywhere. 100,100 to 100,100 Is this
    possible? Also, can Draw Plus use five bit planes? Even though this
    process wo{ld take a long time it still might work. What do you
    think?
    
    -ph