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by Bryan See
Wed May 31, 2017 5:37 pm
Forum: Camera board
Topic: NoIR image channels
Replies: 1
Views: 541

NoIR image channels

Hello,

I would like to verify what color channels of images taken by NoIR. Most sources say that images are in NRG (or GRN) if there's a blue filter. Without it, it would be NGB (or BGN).
by Bryan See
Thu May 18, 2017 9:46 am
Forum: General discussion
Topic: Lagrangian interpolation-based red edge position image?
Replies: 0
Views: 194

Lagrangian interpolation-based red edge position image?

I've been doing for two weeks now to figure out how to produce a red-edge position image from a stream taken by the Pi camera module. The REP image is to be calculated using Lagrangian Interpolation, and it seemed I got the memory-related error when executing it, or worse, it take longer than usual ...
by Bryan See
Sun Apr 23, 2017 4:14 am
Forum: Troubleshooting
Topic: FTDI device not recognised by raspberry pi
Replies: 2
Views: 1166

Re: FTDI device not recognised by raspberry pi

Me too, I'm having same problem here.
by Bryan See
Fri Apr 14, 2017 7:14 pm
Forum: Camera board
Topic: Extracting RAW image from JPG
Replies: 10
Views: 3274

Re: Extracting RAW image from JPG

Me too, from the IMX219 image sensor.
by Bryan See
Fri Apr 14, 2017 10:21 am
Forum: Camera board
Topic: Pi Camera V2 raw bayer data
Replies: 56
Views: 22635

Re: Pi Camera V2 raw bayer data

Bryan I'm a little lost as to what you are aiming for. You want to use the RAW information. You've mentioned DNG aswell. ( what camera version do you have? ) I very recently created a pretty simple to use python script to do this: https://github.com/schoolpost/pydng I believe it creates a pretty de...
by Bryan See
Fri Apr 14, 2017 5:50 am
Forum: Camera board
Topic: RAW output information
Replies: 236
Views: 87140

Re: RAW output information

From what I've found out on that section , the bayer pattern for the IMX219 is: GR BG which means GRBG, I think. But how do the RAW output of the IMX219 image look like? Came by to see this thread, I'll comment around a bit. I tried the first example Python script of the Bayer capture , but I still ...
by Bryan See
Fri Apr 14, 2017 5:33 am
Forum: Camera board
Topic: Pi Camera V2 raw bayer data
Replies: 56
Views: 22635

Re: Pi Camera V2 raw bayer data

No, I am not wanting to create non-Bayer .ppm files, Marcelo. I want to create a raw Bayer image from a JPEG capture. A DNG file, I mean. I used the modified Raspiraw from the Illes' one for that purpose, but the original exiftool is used. /* Read in jpeg from Raspberry Pi camera captured using 'ras...
by Bryan See
Thu Apr 13, 2017 7:40 am
Forum: Camera board
Topic: Pi Camera V2 raw bayer data
Replies: 56
Views: 22635

Re: Pi Camera V2 raw bayer data

Came by to see this thread, I'll comment around a bit. I know that the Bayer pattern of the OV5647 sensor is BGGR. In other words the first row contains alternating green/blue elements, the second row contains alternating red/green elements, and so on as illustrated below: GBGBGBGBGBGBGB RGRGRGRGRG...
by Bryan See
Wed Apr 12, 2017 2:28 pm
Forum: Camera board
Topic: RAW output information
Replies: 236
Views: 87140

Re: RAW output information

Came by to see this thread, I'll comment around a bit. I tried the first example Python script of the Bayer capture , but I still cannot open the image file generated at the end of it, as the file is supposed to be readable in most packages (like GIMP and Photoshop). The question is: Could that be i...
by Bryan See
Wed Apr 12, 2017 11:58 am
Forum: Camera board
Topic: Pi Camera V2 raw bayer data
Replies: 56
Views: 22635

Re: Pi Camera V2 raw bayer data

Came by to see this thread, I'll comment around a bit. I know that the Bayer pattern of the OV5647 sensor is BGGR. In other words the first row contains alternating green/blue elements, the second row contains alternating red/green elements, and so on as illustrated below: GBGBGBGBGBGBGB RGRGRGRGRGR...
by Bryan See
Mon Apr 10, 2017 2:39 pm
Forum: General discussion
Topic: STICKY: Introduce yourself!
Replies: 3462
Views: 67879

Re: Introduce yourself!

I am Bryan See, currently working for my Masters programme at University Putra Malaysia in Serdang.

Interest in Raspberry Pi came in 2016 while coming up a design for a compact version of a currently expensive and heavy hyperspectral camera solution.

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