nice CMOS camera kits?

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#1
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I am looking for a small camera board with CMOS image sensor that I can hookup to a M128.
preferably a simple -as-possible solution with 640x480 B/W

anyone with links? -google is mostly turning up useless white papers and pie charts.

www.pteq.net
Home of:
- Polygon Technologies CC

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Look at allelectronics.com search for keyword camera.

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thanks, but those cams all have analog outputs. :?
I need something where I can clock the pixels out digitally for image processing.

www.pteq.net
Home of:
- Polygon Technologies CC

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http://www.quasarelectronics.com

Also Google for "CMOS camera digital output" or "CMOS camera framegrabber"

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Hi,

I am using a camera module called C328-7640UM from a Far East company. Basically it is a hi res color camera module with an interface chip that connects to a serial port. Piece of cake to use...

Look at http://is6.pacific.net.hk/~comed...

Murdo.

There are already a million monkeys in front of a million keyboards, and the internet is nothing like Shakespeare!

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thanks Murdo and Mr MIC!

now for some questions..
The camera from the far east sends out its images in jpg format over the serial link. how much of a mission will it be to convert this back to bmp on the AVR?

www.pteq.net
Home of:
- Polygon Technologies CC

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Hi Carel,

Quote:
The camera from the far east sends out its images in jpg format over the serial link. how much of a mission will it be to convert this back to bmp on the AVR?

I haven't a clue. In my case the avr is just downloading the images and storing them for use in another system.

Try Google with various search strings, but beware - JPEG is much higher compression than you can get from any BMP or RLE format image. I reckon my JPEGs will come in at 40-80KBytes. A BMP of similar might be 1/2MByte or more!

Murdo.

There are already a million monkeys in front of a million keyboards, and the internet is nothing like Shakespeare!

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actually, BMP is not compressed at all :!: . with a 640x480pixel 8bit image, you will have a file of around 307kb (640 times 480 ).
No ways a 640x480 8bit image can ever be 1-2MB (unless of course you elect to stuff it full of spaces and zeroes and things, in which case you can make it arbitrarily big! :lol: )

www.pteq.net
Home of:
- Polygon Technologies CC

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one last thing murdo, how did you do that nice quote thingy?

let me try..

Quote:
this is working

wow
OK, I have learnt my one thing for the day...[/img]

www.pteq.net
Home of:
- Polygon Technologies CC

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Avrfreakscarel wrote:

The camera from the far east sends out its images in jpg format over the serial link. how much of a mission will it be to convert this back to bmp on the AVR?

I have seen c source to jpeg uncompress...

Imagecraft compiler user

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I think this is what your looking for:

http://www-2.cs.cmu.edu/~cmucam/

A very easy to use interface, and the camera is cheap! :shock:

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Hi Folks,

Carel, what I meant in my post was the image size could be upto 1/2 (ie half) a MB. 307KB vs 500KB isn't too bad for a guesstimate. The full colour JPEG images I created with paintshoppro all came in at between 40 and 80KB

I have no idea how to uncompress the JPEG but I seem to remember it is a very complex algorithm - anybody know better?. I'm not a graphics expert but I guess our friend Google is the best bet. My project is using the camera to grab images, store them and relay them over a wireless link to a host PC.

I'll update everybody as to how I get on with the COMedia solution - AMTRAK should be delivering my first production unit tomorrow.

Murdo.

There are already a million monkeys in front of a million keyboards, and the internet is nothing like Shakespeare!