Comments on: How a digital camera works http://jeffmatherphotography.com/dispatches/2006/11/how_a_digital_c_1/ The 9 to 5 Life of an International Playboy Thu, 08 Jan 2009 18:50:06 +0000 http://wordpress.org/?v=2.2.2 By: Jeff Mather http://jeffmatherphotography.com/dispatches/2006/11/how_a_digital_c_1/#comment-604 Jeff Mather Thu, 03 Jan 2008 21:17:57 +0000 http://jeffmatherphotography.com/dispatches/2006/11/how_a_digital_c_1/#comment-604 I think the easiest thing to do might be this: 1) Bring the RAW images from your camera using whatever process you normally use, such as copying them via a card reader. You may just be able to plug your camera or card reader into a USB port and then CD to the directory containing the images. 2) Use <a href="http://cybercom.net/~dcoffin/dcraw/" rel="nofollow">dcraw</a> or a similar batch converter to transcode the raw images into JPEG. The dcraw program is free, and many people like it. 3) Call IMREAD on the converted file. I think the easiest thing to do might be this:

1) Bring the RAW images from your camera using whatever process you normally use, such as copying them via a card reader. You may just be able to plug your camera or card reader into a USB port and then CD to the directory containing the images.

2) Use dcraw or a similar batch converter to transcode the raw images into JPEG. The dcraw program is free, and many people like it.

3) Call IMREAD on the converted file.

]]> By: hari http://jeffmatherphotography.com/dispatches/2006/11/how_a_digital_c_1/#comment-602 hari Thu, 03 Jan 2008 20:28:43 +0000 http://jeffmatherphotography.com/dispatches/2006/11/how_a_digital_c_1/#comment-602 Thank you for the reply. Excluding MATLAB, is there any other way to do it? what i mean is, i would like to collect the raw file from the camera and convert it to jpg and then read it into MATLAB using IMREAD. Thank you for the reply. Excluding MATLAB, is there any other way to do it? what i mean is, i would like to collect the raw file from the camera and convert it to jpg and then read it into MATLAB using IMREAD.

]]> By: Jeff Mather http://jeffmatherphotography.com/dispatches/2006/11/how_a_digital_c_1/#comment-599 Jeff Mather Thu, 03 Jan 2008 19:40:20 +0000 http://jeffmatherphotography.com/dispatches/2006/11/how_a_digital_c_1/#comment-599 Hi Hari, There isn't anything in MATLAB proper to read RAW files. You might find <a href="http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=7412&objectType=file" rel="nofollow">this MATLAB Central file submission</a> useful to read them. Of course, it's about three years old, so it doesn't support all cameras. Once you get the image in, you can easily write it out using IMWRITE. Hi Hari,

There isn’t anything in MATLAB proper to read RAW files. You might find this MATLAB Central file submission useful to read them. Of course, it’s about three years old, so it doesn’t support all cameras.

Once you get the image in, you can easily write it out using IMWRITE.

]]> By: hari http://jeffmatherphotography.com/dispatches/2006/11/how_a_digital_c_1/#comment-596 hari Thu, 03 Jan 2008 17:35:02 +0000 http://jeffmatherphotography.com/dispatches/2006/11/how_a_digital_c_1/#comment-596 how do we convert *.raw file to *.jpg/tif using Matlab? how do we convert *.raw file to *.jpg/tif using Matlab?

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