Hello all, What would you experts do if you want to perform image compression (I am thinking jpeg), on a low power board? The data is...

Hello all, What would you experts do if you want to perform image compression (I am thinking jpeg), on a low power board? The data is captured from an image sensor and needs to be transmitted elsewhere. Would you use a MCU bundled with a DSP or would you use two separate MCU and DSP chips? I was thinking about using a PIC with nano watt technology along with a low power DSP from TI. Or ...

Hi, I am attempting phase correlation between two sets of images: both are the same size, and are powers of two. The first contains an image...

Hi, I am attempting phase correlation between two sets of images: both are the same size, and are powers of two. The first contains an image in the top left hand corner; the rest of the image is black. The second contains the same image, offset by some amount; the rest of the screen is either gray or black. Using the numerical recipes approach here is my correlation method: ...

Hi everybody! I don't know if my topics is really clear... In fact, lets say that 'I' is an image. I have the image of 'dI/dX' and...

Hi everybody! I don't know if my topics is really clear... In fact, lets say that 'I' is an image. I have the image of 'dI/dX' and 'dI/dY'. Is it possible to get the image 'I' from those slopes (using MATLAB)? I didn't find any topics related to this, hope I didn't miss it.

The pictures shown in the following URL; http://www.unmannedspaceflight.com/index.php?act=Attach&type=post&id=2017 are the original image of...

The pictures shown in the following URL; http://www.unmannedspaceflight.com/index.php?act=Attach&type=post&id=2017 are the original image of Vesta (left), its de-convoluted image (middle / focus depth:=3.8, iteration:=8 / software: Focus Corrector ) and another de-convoluted image (right / focus depth:=4.3, iteration:=8 / software: Focus Corrector). For detail of Focus Corrector, visit...

I uncover the secret of visual consciousness Proof of visual consciousness > From image formation by a plane mirror to the generation of...

I uncover the secret of visual consciousness Proof of visual consciousness > From image formation by a plane mirror to the generation of (human) visual consciousness image formation by a plane mirror , visual consciousness, transform, virtual image , overlap(superpose), dual identities, seeing an object How could an object become visible when observed by the eyes of the human beings,

On Fri, 23 Nov 2007 17:15:41 +0900, Miles Bader wrote: > Industrial One writes: > > On Nov 22, 10:18 pm, He's Late wrote: > > > ...

On Fri, 23 Nov 2007 17:15:41 +0900, Miles Bader wrote: > Industrial One writes: > > On Nov 22, 10:18 pm, He's Late wrote: > > > Doesn't matter, he's way too late. The new HD Photo 16-bit-support > > > image format is already being supported in programs like PhotoLine > > > 32. It's already doing all that stuff. > > Microsoft has a

Hi, I've read in my old textbook that using omomorphic filtering + a slightly modified gaussian highpass filter I can enhance the visibility...

Hi, I've read in my old textbook that using omomorphic filtering + a slightly modified gaussian highpass filter I can enhance the visibility of images, but when I tryed I simply obtained a darker image, which makes sense since the dc is the value reduced the most. Does someone know how this filter works? Thanks.

Hi, I have a doubt regarding 1 other project. I have to get the modulation transfer function of an image (and the same image defocused)....

Hi, I have a doubt regarding 1 other project. I have to get the modulation transfer function of an image (and the same image defocused). The defocus is either induced by constructing a bessel filter (similar to airy functions, defocus created by unfocused thin lens). Even though I already designed the filter, I am currently using a webcam to get the defocus by altering the focus of the le...

The function for denoising in my code is function output = SureDenoise(input,wtype,sigma) here only one orthonormal wavelet called sym8 is...

The function for denoising in my code is function output = SureDenoise(input,wtype,sigma) here only one orthonormal wavelet called sym8 is used and the function for decomposition is WT = WaveDecompo(input,wtype,J) here input is the noisy image and J is the number of scales.While decomposing the image is decomposed into lowpass and highpass subbands.The denoising is done only the highpas...

Hi I'm implementing a Weaver image rejection filter for a digital comms system, but I've run into a problem which I can't resolve,...

Hi I'm implementing a Weaver image rejection filter for a digital comms system, but I've run into a problem which I can't resolve, either conceptually or in my MATLAB simulation. First, my understanding: RF ---- 1/ We receive a signal with a centre frequency of f_c occupying a band (f_c - B) to (f_c + B) 2/ We quadrature demix using an LO of frequency (f_c - B) so that the signal o...

Hello Guys, We had another one, so here is a link to see an image I took...

Hello Guys, We had another one, so here is a link to see an image I took during totality: http://www.claysturner.com/eclipse/lunareclipse.jpg feedback welcome. We can even pull this on topic by discussing drizzle techniques for image processing. Clay

Hello, I'm trying to understand the Richardson-Lucy deconvolution algorithm, primarily from the description...

Hello, I'm trying to understand the Richardson-Lucy deconvolution algorithm, primarily from the description here: http://en.wikipedia.org/wiki/Richardson-Lucy_deconvolution In this notation, u_i is a pixel in the latent image(unknown), c_i the corresponding pixel in the observed image, and p_{i, j} is the point-spread-function, i.e. the fraction of the pixel at j observed at i. This i...

Does anyone have source data for any standard image compression images such as "Lena" in integer/unsigned char format? If not - is there an...

Does anyone have source data for any standard image compression images such as "Lena" in integer/unsigned char format? If not - is there an easy way I can obtain this by opening an image in Matlab? Cheers Gary

Hi, I am new to this programming world, and i really need some serious help. I have done a program in which i design a filter in frequency...

Hi, I am new to this programming world, and i really need some serious help. I have done a program in which i design a filter in frequency domain, then i take a CT image, which is a 3d image, read each voxel and make a 1d array. then i equal the number of samples for both the data set. so i have equal samples. then i do convolution using fftw3 library. but what happens is that i am doing circula...

Here's my problem. I have an image to be processed (well, deconvolved pretty much), and a star-shaped impulse response I want to deconvolve it...

Here's my problem. I have an image to be processed (well, deconvolved pretty much), and a star-shaped impulse response I want to deconvolve it with. The impulse response is symmetric in both the vertical and horizontal axis and pretty much centred, but not very precisely. Of course both the image and the impulse response are appropriately zero- padded as to avoid any circular convolution. ...

Hi, I have been using FFTW to do some image processing, including cross correlations, etc. I have found it to be very useful. I've used the...

Hi, I have been using FFTW to do some image processing, including cross correlations, etc. I have found it to be very useful. I've used the r2c/ c2r combination as well as forward and reverse fftw_plan_dft_1d, based on examples I have found online. I have been reading this discussion group that has helped me figure a lot of things out. However, in my latest application, I still seem to be s...

hi everyone, can u explain to me what is masking?and its function in image processing?its a new thing for me since ive never studied on...

hi everyone, can u explain to me what is masking?and its function in image processing?its a new thing for me since ive never studied on image processing before..would like to know more in detail..thnx ;)

I am using simulink model I am importing an image 256*256 from workspace, then to Block processing box, to compress it , o/p of block is...

I am using simulink model I am importing an image 256*256 from workspace, then to Block processing box, to compress it , o/p of block is 128*128 image , then convert it from 2-d to 1-d using the conversion box then o/p is [16384*1] ,then to frame conversion box,then to RS Encoder . i used 64 for message and 74 for code word length when i connect o/p of RS Encoder to the i/p of RS Decoder , ...

Hello, I am currently doing a research on the above subject. I am not sure about the level of decomposition during wavelet transform. What is...

Hello, I am currently doing a research on the above subject. I am not sure about the level of decomposition during wavelet transform. What is the reasonable number of levels to decompose for image denoising? Thanks.

hi, I urgently want some easy to implement methods/algorithms for image downsampling.

hi, I urgently want some easy to implement methods/algorithms for image downsampling.