Forums Search for: Image
TI DSK
inHi all, I want to work on TI DSPs and plan to buy one of the TI's DSK. Could someone give me advices on the various DSK sold buy TI? What is...
Hi all, I want to work on TI DSPs and plan to buy one of the TI's DSK. Could someone give me advices on the various DSK sold buy TI? What is better for video and image processing algorithms? I wonder what to choose btwn C6416 or C6713. Does anyone belong or use one? any info or recommendations? Could you tell me about the daughter board ports? What are the signals accessible by the...
Image Subsampling Redux
inIt's even more interesting to ponder this: Start with a set of sinusoidally weighted gray stripes going from peak black to peak white. This...
It's even more interesting to ponder this: Start with a set of sinusoidally weighted gray stripes going from peak black to peak white. This is a pure sinusoid plus a constant in one dimension. If we align the stripes either in X or in Y then we can have all these discussions about sampling and filtering as if it were all in 1-D. What happens if the stripes are rotated in XY by 45 degre...
I want to Execute MATLAB file with TMS320C54X
inHi all, I did Image Compression task using SPIHT algorithm with MATLAb 6.5 code. Now i want to implement the same with TMS320C54X. How...
Hi all, I did Image Compression task using SPIHT algorithm with MATLAb 6.5 code. Now i want to implement the same with TMS320C54X. How can i do this with CCS ? Can any body help me ? But i do not want to copy the MATLAB Libabry files in to CCS. Thanks in advance, Sathish
noise removal
inhi everyone, does anyone of u knws how to remove noise in a graph?its kind of a new thing because normally we hear bout how to remove noise in...
hi everyone, does anyone of u knws how to remove noise in a graph?its kind of a new thing because normally we hear bout how to remove noise in an image. please let me knw if anyone of u knw.thnx.
interpolation revisited
inI'm attempting to interpolate a bandlimited sampled signal s(nT) to some arbitrary point s(nT+u) 0
I'm attempting to interpolate a bandlimited sampled signal s(nT) to some arbitrary point s(nT+u) 0
CCD-type chip plus image pixel access system sought
inI am looking for this, and here are some comments I made in another group about the arduino camera, to give you the flavor of the search: > ...
I am looking for this, and here are some comments I made in another group about the arduino camera, to give you the flavor of the search: > Nobody ever bothers to do it that way. They buy one of a certain handful > > of models of webcam and hack them to do what is needed. > > > > http://www.qcuiag.org.uk/ > Yes, they do that, and I am hoping someone on that yahoo group will have do
DCT algorithm correctness?
inHi- I'm new to image processing and have just started work trying to teach myself. Following the equation for the 2D DCT, I came up with...
Hi- I'm new to image processing and have just started work trying to teach myself. Following the equation for the 2D DCT, I came up with the below algorithm. I don't really know how to test if what I'm getting back is correct though because I'm not sure if I interpretted the equation correctly. Suppose I enter all 10s into the 8x8 input matrix, what should I get in return? When I run...
Re: ANNOUNCEMENT: New image format
John Costella schrieb: > :( Damn. I thought I made everything portable, provided that long is > *at least* 32 bits, not just 32 bits. And...
John Costella schrieb: > :( Damn. I thought I made everything portable, provided that long is > *at least* 32 bits, not just 32 bits. And nowhere does a difference > in > pointers need to be longer than 32 bits. (Long story.) Don't be afraid, you're not the first falling into this trap. > (No Windows at all? Ah, I'd love to be able to say that I've kicked > that addiction...) I do
Character Recognition
inAppologies if this is off Topic I would like to write an application for character recognition purposesn but a falling at the first hurdle....
Appologies if this is off Topic I would like to write an application for character recognition purposesn but a falling at the first hurdle. I intend carrying out the following steps. Capture an Image to memory with some numbers on it(say ten chars for example) Isolate each of the indivudual characters Try to identify each of the chars on at a time. At the moment, I am using c...
ADSL Demodulation
inHello, In every book and article aobut ADSL processing the A/D and D/A sample rates are given as 2.208 MHz. For a transmitter implementation...
Hello, In every book and article aobut ADSL processing the A/D and D/A sample rates are given as 2.208 MHz. For a transmitter implementation at this sample rate you would get the conjugate symmetric image spewing out of your D/A since one may use up to bin 255 and there is absolutely no oversampling, and no analog filter in the world can cut-off that fast. Likewise for the receiver, any si...
FX projection
inHi Has anyone here worked with FX projection ? This is based on an article by Robert Soubaras: "Prestack Random and Impulsive Noise...
Hi Has anyone here worked with FX projection ? This is based on an article by Robert Soubaras: "Prestack Random and Impulsive Noise Attenuation by f-x Projection Filtering". The idea is to transform the two-dimensional "t-x" seismic image (t for time is the vertical and x is the spacing between the sensors, in my case seismic traces) to f-x domain. That is taking the FFT of each t...
tiger sharc memory
indoes anybody know if there is any option i have to set when loading data on a tiger sharc TS101? i am trying to load an image into memory but it...
does anybody know if there is any option i have to set when loading data on a tiger sharc TS101? i am trying to load an image into memory but it loads uncorrect values, while if i simulate the loaded values are correct... thanx
How to change the greyscale intensities to the prescribled mean and standard deviation?
inHello all, Hope this would be the stupidest question you have ever read. I am very new in image processing. Now I have many 8-bit greyscale...
Hello all, Hope this would be the stupidest question you have ever read. I am very new in image processing. Now I have many 8-bit greyscale images, and I want to set the mean and standard deviation to 0.25 for further processing linearly. Could anyone tell me how to do that? Thanks in advance.
"Repairing" an out-of- focus picture
inHi, My question might be simplistic as neither optics nor image processing is my field. Firstly, I was wondering if it is possible to...
Hi, My question might be simplistic as neither optics nor image processing is my field. Firstly, I was wondering if it is possible to compensate for a picture taken by an out-of-focus digital camera by doing a 2D deconvolution on it (MMSE filtering or something like that), in order to recover the in-focus picture Secondly, can the optical transfer function between a properly focused pi...
RGB of Audio
inHi., Well, with out wasting your valuable time what the point I want to shoot is that, In an Image for a given pixel we can get...
Hi., Well, with out wasting your valuable time what the point I want to shoot is that, In an Image for a given pixel we can get its RGB values.I mean consider this small example if the pixel is 24-bit, R = 8 G = 8 B = 8 R, G & B are in the range of 0 - 255. combining these three color values we will get an unique color. In the same way is ther any procedure f...
Re: ANNOUNCEMENT: New image format
Thomas Richter wrote: ... > (In fact, it need not to be "bit" at all as ANSI-C could run on a "ternary" computer. > Even though this is only...
Thomas Richter wrote: ... > (In fact, it need not to be "bit" at all as ANSI-C could run on a "ternary" computer. > Even though this is only science fiction, in reality things like 36bit integers have been seen, > so beware.) I cut my teeth on Decsystem-10s and 20s. In fact, I still have a t-shirt that says, "If your computer has less than 36 bits, you're not playing with a full DEC."
radiographic images
Hi all iam working on radiographic images , i need some assistance for the issues iam getting. can i post the questions in this group or...
Hi all iam working on radiographic images , i need some assistance for the issues iam getting. can i post the questions in this group or any other group is related to image processing please help me, thank you
equalizer output issue - eqout.jpg (0/1)
inHi everyone, I'm working on an LMS adaptive filter which is behaving in somewhat of an unexpected way. The attached image shows the histogram of...
Hi everyone, I'm working on an LMS adaptive filter which is behaving in somewhat of an unexpected way. The attached image shows the histogram of the equalizer output after convergence; my slicer thresholds are at 0.5 and -0.5 (ie anything above 0.5 is sliced to 1, anything below -0.5 is sliced to -1 and anything in between is sliced to 0; this is a 3 level code.) Then I use an error generate...
Fast Convolution
inI did search the groups for fast convolututions,but did not find the answer relevent to my research.So here is the question. I use a gaussian...
I did search the groups for fast convolututions,but did not find the answer relevent to my research.So here is the question. I use a gaussian to smoothen the image.Making the filter seperable (in row and column) is the normal approach(unless you have a lot of time to process a 2D gaussian).I am NOT doing recursive filtering,just filtering it once.Some of the approaches I came across are ...
Reg CCS5000 with MATLAB
inHi all, I am working on TMS320C5510 for Image processing applications. I have some useful codes in MATLAB. How can i...
Hi all, I am working on TMS320C5510 for Image processing applications. I have some useful codes in MATLAB. How can i execute MATLAb files with CCS ? Is there any need copying all Library files of MATLAB lab in to CCS ? I think it is bot a better option. Any one master in this field , please help me. Thanks and in adavance, Best Regards, Sathish At...