Community Profile

photo

Subhadeep Koley

MathWorks

Last seen: 約2ヶ月 前 2019 以来アクティブ

I am a Software Engineer here at The MathWorks.

My areas of interest are Image Processing, Pattern Recognition, Computer Vision & Graphics, and plotting.

DISCLAIMER: Any advice or opinions here are my own and in no way reflect that of The MathWorks.

Statistics

All
  • Treasure Hunt Participant
  • MATLAB Central Treasure Hunt Finisher
  • Knowledgeable Level 5
  • Pro
  • Revival Level 3
  • 3 Month Streak
  • Commenter
  • Promoter
  • Solver
  • First Answer

バッジを表示

Content Feed

表示方法

回答済み
How to calculate signal to noise ratio of hyperspectral image refolded in 2D matrix format?
As per my understanding, "A single value for SNR" indicates the overall SNR between the noisy and cleaned data. While in order t...

2ヶ月 前 | 0

| 採用済み

回答済み
MATLAB hyperspectral toolbox issues
1) The error is originating from line number 53 of "enviinfo.m". It seems that you have one local custom function in the name o...

7ヶ月 前 | 1

解決済み


The Piggy Bank Problem
Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

8ヶ月 前

回答済み
how to use 'createImagePatchesFromHypercube' function
It seems you're trying to execute createImagePatchesFromHypercube outside of the "Classify Hyperspectral Images Using Deep Learn...

11ヶ月 前 | 1

| 採用済み

回答済み
How to make an ENVI header file."?
Looks like the indian_pines.hdr ENVI header file has been modified in your system. For a valid ENVI header file, the first four ...

11ヶ月 前 | 0

回答済み
Reading a RAW file from a hyperspectral camera using ENVI information
You can use the enviinfo(__) function to read metadata from your ENVI header file (.hdr file), and then you can use multibandrea...

11ヶ月 前 | 1

回答済み
How to read hyperspectral data without wavelenth data?
If you know the height, width, and number of spectral bands of your data, you can try using multibandread(_). However, in orde...

11ヶ月 前 | 0

| 採用済み

回答済み
How to read hyperspectral data
The error is originating from line number 53 of "enviinfo.m". I suspect you have one local custom function in the name of "envi...

11ヶ月 前 | 0

| 採用済み

回答済み
My batch image processing is only processing the last image of the folder!
You're calculating imhist() outside of the for loop that is why only the last read image is being processed. You need to use the...

12ヶ月 前 | 1

| 採用済み

回答済み
Phase Scrambling/Fourier transform of Images?
phase_scrambled_img is of type double but its range is beyond [0, 1], therefore use the below syntax so that imshow(_) can scale...

12ヶ月 前 | 0

| 採用済み

回答済み
The following cmd doesnt work "openExample('uav/ConnectPosesOfAllValidUAVDubinsPathsExample')"
The example you're trying to launch comes under UAV Toolbox. You have to have UAV Toolbox installed in order to use that example...

12ヶ月 前 | 1

| 採用済み

回答済み
Hyperspectral Imaging preprocessing method for raw data acquired from hyperspectral camera? tools or algorithm
You can use Image Processing Toolbox's Hyperspectral Imaging Library support package. It can be downloaded from here. You can ...

12ヶ月 前 | 0

回答済み
How to detect and separate pixels in an image
rgbImg = imread('image.png'); grayImg = rgb2gray(rgbImg); greenMask = detectGreen(rgbImg); figure imshow(rgbImg); hold on...

約1年 前 | 0

| 採用済み

回答済み
Help with User defined function
function y = UnitConversionsFunction(x, options) % Validate that value is a character vector or string scalar. (Works only wi...

約1年 前 | 0

回答済み
Goodness of fit using chi2gof
Wasim, this link might help you.

約1年 前 | 0

回答済み
How do I change the array of 200x2x100 to 100x2x200?
% Generate demo data data = rand(200, 2, 100); % Permute the data newData = permute(data, [3 2 1]); size(data) size(n...

約1年 前 | 1

| 採用済み

回答済み
App Designer Plot Multiple Graph
The attached minimum working example App might help you! Have a look.

約1年 前 | 1

| 採用済み

回答済み
How can I overlay an edge detected from a binary image onto a RBG image?
% Read the RGB images fig00RefFull = imread('00-Ref-Empty.jpg'); fig00RefEmpty = imread('00-Ref-Full.jpg'); % Convert those...

約1年 前 | 0

| 採用済み

回答済み
MATLAB app designer not playing sounds
I have attached one demo minimum working example. Have a look. It might help you fix the issue. Also, if possible provide the...

約1年 前 | 1

| 採用済み

回答済み
how to change hyperspectral image size array?
This code snippet might help. % Creating a random data dataCube = rand(3248,242,256); % Permuting the 2nd and 3rd channel ...

約1年 前 | 1

解決済み


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

約1年 前

回答済み
'unrecognized function or variable 'yolov30ObjectDetector'
This example you're executing, requires the Computer Vision Toolbox™ Model for YOLO v3 Object Detection. You can download & inst...

約1年 前 | 3

回答済み
How to import a .MAP OMNIC picta file into matlab
As, .MAP is not a standard file format. It is difficult to provide exact solution. However, if the .MAP file is a binary file,...

約1年 前 | 0

回答済み
Displaying Multispectral Image in MATLAB
You can not use imshow(_) or imagesc(_) to display Multi-plane images having more than 3 channels. You can use sliceViewer(_) t...

約1年 前 | 1

| 採用済み

回答済み
Combining hyperspectral image bands R, G, B and NIR
% Read the TIF file cube = imread('yourFile.tif'); % cube is your 8 band TIF file % Extract R, G, B, and NIR band according ...

約1年 前 | 0

回答済み
Read and Extract channel data from Hyperspectral images
You can use the hypercube(__) function to read and explore hyperspectral images. % Read the hyperspectral image (specify your i...

約1年 前 | 0

回答済み
Stacking indexed images and view the resulting volume
This code snippet might help. A = imread('image2.png'); B = imread('image3.png'); C = imread('image4.png'); [D, map] = rgb...

約1年 前 | 0

回答済み
I have multispectral image of [ 8225,8850,6]. How to read image and i need to seperate bands for analysis?
For visualization of individual pixel spectra / hyperspectral band image you can use the interactive hyperspetralViewer App. e.g...

約1年 前 | 1

回答済み
How can I combine three hyperspectral bands into an "RGB" image?
You can use the hypercube(__) function to read your ENVI file (.dat and .hdr file pair), and also the colorize(__) method will h...

約1年 前 | 0

回答済み
How to create RGB image with 3 bands from hyperspectral image?
You can use the hypercube(__) function to read Hyperion EO-1 L1R files and also the colorize(__) method will help you to estimat...

約1年 前 | 0

もっと読み込む