Re: Casio Digital Cameras (all types)

Wolfgang Jung (woju@keep.in-berlin.de)
Thu, 11 Jun 1998 22:11:42 +0000

On Thu, Jun 11, 1998 at 04:20:43PM +0200, erikyyy@studbox.uni-stuttgart.de wrote:
> someone of you told me URLs about the CASIO cameras.
>
> i downloaded the programs, and they work.
>
> of course a SANE driver would be better.
>
> i'll tell, what the differences between Casio Cameras and normal
> scanners are, and other interesting things:
>
>
> - previews can be downloaded from the cam. (goes faster)
> - 115200 baud is best, but setserial needs to be called.

which setting is needed with setserial ?
for telling it 115200 bps zthen it needs to be recompiled with termios
since then you can directly access the 115200 setting with linux.

> this should be included in the code !

This shoul be corrected

> you have to tell the camera, which speed you want.
> - camera is connected to RS232.
> - no timing problems
> - camera stores several pictures. (may be very many, depending on camera
> type)
> - camera supports 2 formats. (high and low quality)
> - camera stores pictures in JPEG !!!!!
> - camera sends pictures in JPEG !!!!!
> - need to convert JPEG to pnm in order to work with sane.
> - converting from jpeg to pnm only to compress the picture after scannign
> it, with a JPEG compressor may be quality reducing.
> - you cannot just say "SCAN". you must instead choose, WHAT you scan :-)
> - SCAN is not the right word. remember, you can even tell the camera
> to shoot a picture via RS232, so SCAN mustn't be used for downloading,
> but shooting new pictures.
> - this leads to problems. should the number of the picture to scan be
> a device parameter or what ?
> - software can tell camera, wich picture to show on cameras LCD display.
>
> so there are various ways to develop program for camera.
>
> nice idea would be to download ALL thumbnail pictures, display them,
> tag some, and start transfer afterwards.
> (does this fit into SANE's way of doing things ?)
>
> the preview _window_ is not really useful ?
>
> perhaps for a first version it would be enough to choose the picture number
> the way you choose the brightness of a quickcam. then you do
> "Acquire Preview" and get the thumbnail image.
> "Scan" Downloads the full image.
>
>
> unfortunately i am out of time, and i am no good in GTK prorgamming
>
>
> the cameras in question are all casio digital cameras !
> the driver already exists, and it works !
> (but it is not SANE compatible)
>
>
> remember: casio cameras are MANY :-) and i like them.
>
> byebye
> Erik
>
>
> --
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>
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