Interpolation

This is an image contrast enhancement algorithm that overcomes limitations in standard histogram equalization (HE). The two primary features is adaptive HE (AHE), which divides the images into regions and performs local HE, and the contrast limited AHE (CLAHE), which reduces noise by partially...

Function call: env_secant(x_data, y_data, view, side)Calculates an envelope of data over .Method used: 'secant-method'env_secant() observates the max. slope of every about points from last junction point, and joints them to the resulting envelope.An interpolation over original x-values is...

This functions uses GRIDDATA to interpolate pixel values from scatterred points on a head image. A reference image can be used to interactively select point locations from the 10/20 international system (EEG electrode position). Options for interpolation include linear and cubic and nearest. The...


Platforms: Matlab

function alt_km=ITU_P1511(lat,long)computes altitude of a site at given lat,long coordinatesby means of bicubic interpolation using itu topo 0.5 degrees resolutionmatrix.refer to ITU-R Recommendation P 1511.INPUTSlat: latitude + = North, -=southlong: longitude, positive degrees East.Required...


Platforms: Matlab

The function interpolates between SRTM data points.


Platforms: Matlab

When drawing financial time series from various markets, one usually needs to make some adjustments before evaluating the series. One of the major concerns is that due to different national holidays or working days across countries, the dates happen to be not synchronized. Clearly this could make...


Platforms: Matlab

An image in your root directory can be zoomed by calling the above program.*First try with a small image. Because when the image is smaller, program response quickly.How to Run the Program*copy bilinear_zoom.m file and the image file to your work directory.Example-*if the name of image in root...


Platforms: Matlab

The function yuv2yuv creates a YUV-file from a YUV-File. It can be used to decrease or to enlarge the resolution of the original YUV-file (e.g. 352x288 -->107x80). Additional the format can be changed (e.g. 4:2:0 --> 4:0:0). The function supports different resolutions and the YUV-formats 4:0:0,...


Platforms: Matlab

Demonstration of Neoclassic Growth Model in Dynamic Economics, deterministic model, using both discrete optimization and interpolation method. Utility function and production function defined seperately. Generate plot to show the Policy function and Value function generated by optimization...


Platforms: Matlab

In geomatic projects, it is often required to generate a regular grid containing points at pre determined intervals. Such grids could be used as a reference to georectify toposheets.This script when run asks for the bounding box of the study area in latitude and longitude, the sampling density or...


Platforms: Matlab

Bootstrap the yield curve, discount curve and the forward curve from market data***************** BOOTSTRAPPING RESULTS **********************Time (Years)| Yield Curve | Discount Curve| Forward Curve |----------------------------------------------------------------------- 0.51 | 1.2404% | 0.9938...


Platforms: Matlab

zooming a given image by a given positive factor can be done..copy nearest_neighbor_zoom.m file and the image file that should be zoomed to your work directory.if the name of the image file is image.jpg and the zooming factor needed is 2.23,run following command on command...


Platforms: Matlab

Content-based image retrieval is the task of searching images in databases by analyzing the image contents. In this demo, a simple image retrieval method is presented, based on the color distribution of the images. The user simply provides an "example" image and the search is based upon that...


Platforms: Matlab

Software to paper (please cite when using the software)Leszek Marcinkowski, Talal Rahman and Jan Valdman,A 3D Crouzeix-Raviart mortar finite element.Computing 86, No. 4, 313-330 (2009)download: http://www.springerlink.com/content/p8nx4573480hm98h/?p=31e284c1655141f691369102e361c9a4&pi=1This...


Platforms: Matlab

Revised 23rd Feb. 2006.Improved speed, functionality and documentation2-nd Rev, 3rd Apr.2007, back from TVAR to NUM2STRMAXimum points in a curve, ALL(default) or manually positively/negatively selected, with (default) or without parabolic interpolationneeds CLINEDemo uses SAVFILTHELP MAXALL shows...


Platforms: Matlab

Spanish Tutorial on Radial Basis Function (RBF) for academic and educational purposes onlyThis tutorial provides a brief introduction to neural network training radial basis function together with its numerical implementation as approximating functions. Network is simulated in the MATLAB d-OC?D?...


Platforms: Matlab

Colormap is based on the colors used by W. F. Haxby's Gravity field of World's oceans, 1985, developed for geoid and gravity maps. The version used here is formed from a linear interpolation of the GMT color table used by MB-System by David W. Caress and Dale N. Chayes...


Platforms: Matlab

INVDISTGRID Simple, robust gridding using inverse-distance interpolation. [Xi,Yi,Zi] = invdistgrid[X,Y,Z,dx] Grids values in vector Z with coordinates X and Y into an array with spacing dx using inverse-distance weighting (default power =2). All data between grid points are used in weighting. If...


Platforms: Matlab

Different elevations cannot be identified with standard matlab functions such as surf, even changing FaceColor attribute to activate interpolation. In contrast, with this function alows one can define contour levels and different colors are applied to each level.Instead of using surf(x,y,z), you...


Platforms: Matlab

Medical Image Reconstruction using Filtered Back Projection.Matlab code (GUI) + 4 Sinograms for testing/demonstrations.Can be used as a laboration to compare different numbers of projections, filters and interpolation methods.


Platforms: Matlab