Helal Uddin Mullah

6 Questions 3 Answers 0 Followers

Questions related from Helal Uddin Mullah

Why the inbuild function used for bicubic interpolation results in different PSNR in MATLAB and OpenCV?

if we perform bicubic interpolation using matlab function: [nrow, ncol] = 2*size(im_l); im_b = imresize(im_l, [nrow, ncol], 'bicubic'); it shows PSNR =29.30 in MATLAB R2013a resize(img, im_b,...

07 July 2018 2,017 0 View

How multispectral satellite image's bands can be splitted in opencv C++?

Given a multispectral satellite image with 4-8 bands; what is the correct code for band splitting of the image using OpenCV C++ programming? ------------------------------------------- Mat img2 =...

06 June 2018 7,943 1 View

How to calculate PSNR of a multispectral Image?

We can find RMSE error between two gray scale image and then find peak-signal-to-noise ration (PSNR) value. However, in multispectral images an image consist of 4-10 spectral bands. What is the...

05 May 2018 719 3 View

Sparse coding or ISTA/FISTA?

In solving sparse representation problems in image processing generally the L1-minimization techniques gives good result compared to other greedy algorithms. But sparse coding method that solves...

02 February 2018 558 3 View

Image super-resolution algorithms generally use the patch-based processing which is very computationally intensive. Any alternative?

In general, the dictionary learning based image super-resolution methods adopts the patch based reconstruction of the target image. Such algorithms are very slow as it solves the convex...

02 February 2018 8,077 1 View

How the overlapping of multiple low resolution images are carried out for registration of them into a high resolution grid ??

http://www.vision.huji.ac.il/papers/supres-book.pdf

03 March 2016 8,856 0 View