Hello there, I want to speak about "Maximum Resolution : 4608 x 3456". I think that it could get this huge resolution only as a Still Image. You should remember that still image capture is not include in linux-uvc (you may read it in http://linux-uvc.berlios.de/#status ). But I'm studying Still Image for getting this feature to linux-uvc.
32$ is a too good price for a cool webcam... I don't know this manufacture. If you buy it, you would send us its lsusb description for understanding this device. Good bye Palmax 2010/4/9 <[email protected]>: > Send Linux-uvc-devel mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.berlios.de/mailman/listinfo/linux-uvc-devel > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Linux-uvc-devel digest..." > > > Today's Topics: > > 1. 16MP or 1.3MP? (Ian Latter) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 09 Apr 2010 20:40:41 +1000 > From: "Ian Latter" <[email protected]> > To: [email protected] > Subject: [Linux-uvc-devel] 16MP or 1.3MP? > Message-ID: <[email protected]> > Content-Type: text/plain; charset="us-ascii" > > Hello, > > > Its a been a long time since I was last working with UVC, > but I found a camera that I couldn't resist, and you're in the > mainline kernel now .. and I'd like to do some aerial photos > from my embedded platform .. > > You have a 093a:2700 device listed on your site as > working (and my testing confirms this); > > http://linux-uvc.berlios.de/ > 093a:2700 > - iSonic W002 > - A4Tech PK-635K > - Digital Innovations 1.3MP Webcam > --> Pixart Imaging > > Confirmed in Fedora 12 (kernel 2.6.31 - dmesg output); > usb 1-1: new high speed USB device using ehci_hcd > and address 27 > usb 1-1: New USB device found, idVendor=093a, > idProduct=2700 > usb 1-1: New USB device strings: Mfr=16, Product=96, > SerialNumber=0 > usb 1-1: Product: USB2.0_Camera > usb 1-1: Manufacturer: PixArt Imaging Inc. > usb 1-1: configuration #1 chosen from 1 choice > Linux video capture interface: v2.00 > uvcvideo: Found UVC 1.00 device USB2.0_Camera > (093a:2700) > input: USB2.0_Camera as /devices/pci0000:00/0000: > 00:02.1/usb1/1-1/1-1:1.0/input/input6 > usbcore: registered new interface driver uvcvideo > USB Video Class driver (v0.1.0) > ALSA sound/usb/usbaudio.c:1300: current rate > 6292992 is different from the runtime rate 16000 > ALSA sound/usb/usbaudio.c:1300: current rate 34560 > is different from the runtime rate 48000 > usbcore: registered new interface driver snd-usb-audio > ALSA sound/usb/usbaudio.c:1300: current rate 33024 > is different from the runtime rate 48000 > ALSA sound/usb/usbaudio.c:1300: current rate 33280 > is different from the runtime rate 48000 > > > luvcview output looks okay (save that massive fraction); > # ./luvcview -L > luvcview version 0.2.1 > Video driver: x11 > A window manager is available > video /dev/video0 > /dev/video0 does not support read i/o > { pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' } > { discrete: width = 640, height = 480 } > Time interval between frame: 1/30, 1/20, 1/15, 1/10, > 1/5, 1/1, > { discrete: width = 320, height = 240 } > Time interval between frame: 1/30, 1/20, 1/15, 1/10, > 1589/15625, 1/1, > { discrete: width = 160, height = 120 } > Time interval between frame: 1/30, 1/20, 1/15, 1/10, > 1589/15625, 1/1, > { discrete: width = 176, height = 144 } > Time interval between frame: 1/30, 1/20, 1/15, 1/10, > 1589/15625, 1/1, > { discrete: width = 352, height = 288 } > Time interval between frame: 1/30, 1/20, 1/15, 1/10, > 1589/15625, 1/1, > > > And I can see my ugly mug at 640x480 via the native > "Cheese Webcam Booth" app - no magic required. Nice. > > > The issue that I have is that this camera is sold as a 16 > (well, 16.0) mega-pixel camera; > > Speed 16.0Mega Pixel USB2.0 Webcam S4850v > https://www.pcdiy.com.au/product_info.php?products_id=9757 > > TECHNICAL SPECIFICATION > - Speed 16.0Mega Pixel USB2.0 Webcam > - Effective Static Pixels 16 Mega Pixel > - Maximum Resolution : 4608 x 3456 > - Output Format: YUY2 > - Max Frame Rate: 30fps > - USB 2.0 compatible > - White balance: Auto > - Auto Exposure ( AE ): Auto > > > While I understand that I would get 16MP in a photo, > I don't see the option to take a photo greater than > 640x480 (the 1.3MP that is reported on the linux-uvc > compatibility chart). > > Any thoughts on how to poke this device to get the > higher resolutions? Or is it possible that they're going > outside of UVC (to something proprietary) to get those > resolutions? Or are they doing something bodgy in > the win32 software by collating 16 to 32 frames of 1.3MP > shots to "assemble" a 16MP image? > > I'm confident that my reseller is above board - the > specifications on that site match those on the back of > the product's packaging. I obviously can't speak for > the whole-saler or upstream there-after .. > > lsusb -v output is attached and is consistent with > luvcview output. > > The device does not have an external power option. > > > Thanks for your help, > > > > > > -- > Ian Latter > Late night coder .. > http://midnightcode.org/ > -------------- next part -------------- > An embedded and charset-unspecified text was scrubbed... > Name: lsusb.txt > URL: > <https://lists.berlios.de/pipermail/linux-uvc-devel/attachments/20100409/af1c174c/attachment.txt> > > ------------------------------ > > _______________________________________________ > Linux-uvc-devel mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/linux-uvc-devel > > > End of Linux-uvc-devel Digest, Vol 46, Issue 9 > ********************************************** > _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
