Re: Girl image on Super Hires

["Bryan Parkoff" <nospam@nospam.com>]

Hi,

    It looks like you are from China.  Are you?

    I have looked at your website.  I am sorry.  I am not aware of real 
people on the magazine to look real using SHR format.  I may be able to give 
you a trick how to use my procedure.
    I would suggest to use digital camera to shoot a beautiful woman's face. 
The JPG format has 24 bit colors.  You can convert from 24 bit colors to 12 
bit colors by stripping off 4 LSB bits on Red, Green, and Blue.  Stripping 
off 4 bits is a Red 8 bit signal example of from 11010110 to 11010000.  If 
you need little brightness as optional (not necessary), you can replace from 
11010000 to 11011111.  Repeat the same procedure for Green signal and Blue 
signal.
    JPG format has higher resolution than 800x600.  Try to capture beautiful 
woman's face to fit 320x400.  Apple IIgs' Super High Resolution is limited 
to 16 colors out of 4,096 colors.  You can use 16 palettes to choose 16 
colors.  One palette is used at this time each horizontal line.  You can 
choose any palette to fit some horizontal lines so Super High Resolution 
picture will look like 256 colors.
    I said 320x400 resolution earlier.  Apple IIgs only use 320x200 
resolution, but it looks like 320x400 resolution.  Strip off odd horizontal 
line and copy even horizontal line into odd horizontal line.
    I can tell that beautiful woman's face picture will not look great as 16 
colors each horizontal line.  You may want to work pixel by pixel to correct 
4-bit color by using 16 palettes.
    After you have completed fixing 4-bit color picture, you are ready to 
build Super High Resolution format by putting 16 palettes in the top before 
you copy even horizontal line into 4-bit color.
    It is a lot of work to do, but it is not worth to give a try.  You can 
find an utility.  The utility can convert JPG or GIF format into SHR format, 
but it may lose unpleasant 24 bit colors.  Using my procedure may help.  Do 
you have Apple IIgs Technical Reference manual?  It explains in full detail 
how SHR format is used.  You need to write source code like C++ to convert 
JPG format into SHR format in your own to choose 16 palettes.
    I hope this help.

Bryan Parkoff


-- 

Yours Truly,
Bryan Parkoff
bparkoff@satx.rr.com
"limtc" <thyechean@gmail.com> wrote in message 
1190998234.429837.60530@50g2000hsm.googlegroups.com">news:1190998234.429837.60530@50g2000hsm.googlegroups.com...
> Hi,
>
> I have written a simple program to teach how to load an image:
> http://virtualgs.larwe.com/Virtual_GS/Taj_Mahal.html
>
> However, I am looking for beautiful pictures to create slideshow
> examples, and I remembered my first impression of Apple IIGS is
> actually a picture of a very beautiful girl (a blonde, mostly just her
> face), shown on the Apple IIGS screen. I have seen this girl image on
> the cover of some magazines covering Apple IIGS.
>
> I am wondering whether anybody seen this photo, or can point me to
> some great looking girls photo Super Hires image? This is my first
> impression of Apple IIGS graphics, and I hope to locate that picture,
> thanks!
>