What is the relationship between convolution of high frequencies image with a 3 x 3 Laplacian kernel?

01 January 2018 0 10K Report

Filtering dataset quality is very important prior to segmentation analysis. A single channel of an image is applied before convolve it with the Laplacian kernel.

Badges
Science topic

Similar topics
Computer Science
Images

More Mohd Najib Ahmad's questions See All

What are the limitations for colorimetric in computer vision technique to extract object features with noisy background?

Combination of morphometric and colorimetric has been applied for feature extraction in detection algorithm. In noisy background, this CV technique facing wrong identification results as well as...

07 August 2018 7,661 7 View

What is the difference between illumination normalization techniques, ANN classifier and CNN classifier in solving face recognition problems?

This is specific to the face recognition in unconstrained environment, generalization capability of the face recognition systems with large training datasets and generation of additional synthetic...

11 December 2017 960 2 View

What is the meaning of strel, 3 x 3 matrix of all ones?

The same strel is apply for dilation and erosion operation in morphological operator.

11 December 2017 494 0 View

What is the definition and function of multiresolution segmentation in image analysis?

It was reported as a basic procedure in the software eCognition for objectoriented image analysis (Delphi2 Creative Technologies, Munich).

03 April 2017 3,254 0 View

How image intensity can be changed using the logical indexing method?

This subject is discussed under indexing in MATLAB. Basic script, Img (Img=0) = 1 (All zero intensities changed to one), or can use Img>200, depending on the aforementioned tech. used (one can...

03 April 2017 4,631 4 View

In MATLAB function, how to generate images with correlated pixels?

It is more realistic to model pixels in an images with some degree or type of correlation, because due to the point spread function and the intensity of a pixel may contain info from its...

03 April 2017 2,158 0 View

What is the relation between "Bremsstrahlung" signal and plasmons signal?

If a part of the energy that an electron carries is transferred to the specimen, several processes might occur leading to the generation of the above signals.

31 December 2016 5,573 0 View

How to determine sample size for any spectroscopic experiment?

Is there any formula or specific program?

11 December 2016 530 6 View

What is the detector for NMR spectroscopy and SEM/TEM?

To understand basic of various spectroscopy techniques, type of detector of electron with characteristic kinetic energy is important to be explained.

11 December 2016 319 0 View

Which is a suitable bulb to trap insects?

According to nhbs, actinic or mercury vapour electrics can be applied since it is incorporated and supported by 240V (mains powered) or 12V (battery powered) control boxes.

01 February 2015 4,524 10 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

What are the values needed for gabor filter's parameter for cifar10 data?

Hi, I implemented a code to gabor filter cifar10 data but the images after being filtered and stacked are not clear like the original images. I think the problem is in the way I am using the...

03 March 2021 6,317 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

How to calculate Total Flavonoid?

I analyzed flavonoid total spectrophotometry, the procedure as below: 2 ml supernatan added 5 ml dd.H2O, then added 0,15 ml NaNO2 5%, 5 minutes later added 0,15 ml AlCl3 10%, After 6 minutes,...

01 March 2021 6,722 1 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

How to find the mode of classified ocean colour images?

Hello, I have classified 10 S3 OLCI images from the same area (althouth not the same size and/or quadrant) and I would like to do a final image using the mode of the pixel of these 10 images. I...

01 March 2021 9,874 3 View

How to threshold an image despite bright lighting, using ImageJ/Fiji?

Hi everyone, I am using Fiji to determine the percentage of the image covered by leaves, branches, or trunk, but i've encountered some difficulty when the sun hits parts of my image like the one...

27 February 2021 1,194 3 View