Luminous Intensity

Contains two modules. The first solves the KZK equation for the pressure distribution of an axisymmetric focused ultrasound transducer, produces salient plots, and dumps the computed data to the Matlab workspace. The second module uses the pressure distribution to compute heating and thermal dose... Platforms: Matlab

The submission considers first-order exponential-decay Hawkes processes with constant unconditional intensities, and presentsa) a calculation of point-time intensities for constituent series of a multivariate process;b) a plotting function visualizing intensity dynamics and event occurrences of a... Platforms: Matlab

Brightness Preserving Dynamic Fuzzy Histogram Equalization(BPDFHE) proposes a novel modification of the brightness preserving dynamic histogram equalization technique to improve its brightness preserving and contrast enhancement abilities while reducing its computational complexity. This... Platforms: Matlab

the pixels in an image are weighted with their intensity. we try to fit a pre-defined number of connected (partially overlapping) ellipses onto this image, using gmdistribution.fit from matlab's statistics toolbox.i used this to separate ellipse-shaped objects (with a size of ~20 to 30 pixels per... Platforms: Matlab

The function essentially simulates the colored noise which essentially is a correlated process and unlike the white noise does not have flat PSD. Although white noise is a realistic process color noise seems more practical and hence it requires correct modeling and simulation. The simulation here... Platforms: Matlab

IMSHADE will plot a matrix representing topography as a 3-component color image, with intensity proportional to the magnitude of the topographic slope of each pixel. Optionally, it can take an argument for lighting angle to use the directional slope.The current colormap will be used, but future... Platforms: Matlab

This function amplifies areas of high intensity and segments them using a front. The front is initialized on the convex hull (for speed) and erodes the map until it has converged on the edge of the areas to keep, maintaining edge geometry.The idea and title for this function come from Dr. Tong... Platforms: Matlab

This code snippet converts a 2D matrix to a 3D matrix where the values in the 3rd dimension correspond to pixel intensity in the red, green, and blue domains. This is the format used by many functions in the Image Processing Toolbox (which is not required for this function to run).The code works... Platforms: Matlab

plotRGB allows quick plotting of an overlay of three grayscale images with possible custom scaling of the R, G and B intensity rangesgrayscale ranges are normalized for RGB plot Platforms: Matlab

VIVID Creates a Personalized ColormapVIVID(...) Creates a colormap with custom settings Inputs:M - (optional) an integer between 1 and 256 specifying the number of colors in the colormap. Default is 128.MINMAX - (optional) is a 1x2 vector with values between 0 and 1 representing the intensity... Platforms: Matlab

This script calculate the contrast between gray matter and whitematter of mouse spinal cord based on equations for signal intensity ofgray and white matter in a gradient echo imaging sequence. The T1, T2,and T2-star values for gray matter and white matter were taken fromMeyerand et al. Magnetic... Platforms: Matlab

Segmentation by growing a region from user defined seed point, using intensity mean measure.Simple and efficient (only one loop) example of "Region Growing" algorithm from a single seed point.The region is iteratively grown by comparing all unallocated neighbouring pixels to the region, using... Platforms: Matlab

This small contribution is useful in cases where you search for the position of a peak within an intensity matrix (correlation or energy fields) of low resolution. Since this is only a 2nd-order-fit the sub-sample accuracy will only be acceptable as long as the peak area is 'smooth' around the... Platforms: Matlab

Calculate a sine vector including harmonics. Save as wave file.Produce a sine vector including harmonics. Different intensities for harmonics are possible. Control duration and sample rate. Save sine vector as a wave file.Intensities are weighted according to number of harmonics. Vector is... Platforms: Matlab

Create images with diffraction-limited spots of varying size and intensity, with noise.Tristan UrsellMarch 2012Create an image with randomly positioned, diffraction-limited spots with full data on actual spot positions and parameters. Useful for testing a spot finding... Platforms: Matlab

VOL3D Volume (voxel) render a 3-D arrayusing 2-D OpenGL texture maps. Useful for visualizing and exploring 3-D data such as MRI images.This function requires OpenGL hardware acceleration. See 'opengl' command for more information.Use vol3dtool for editing the colormap and alphamap. Adjusting... Platforms: Matlab

The original inspiration for ISG comes from the Section Analysis mode of Veeco's Atomic Force Microscope image analysis software. ISG allows similarly designated sections from optical and electron microscope images to be replotted with section data exported from Veeco's software. The purpose of... Platforms: Matlab

This is a simple GUI to dislay 3D images, i.e., stack of 2D images. The sliding bar and edit window allow changing the slice number (See the screenshot). It has a colormap menu which includes gray,inverse gray, hot and jet colortables as choices. When the user right-clicks on the image, the... Platforms: Matlab

A MATLAB implementation of the plot described in Eilers, P.H.C. and Goeman, J.J (2004) "Enhancing scaterplots with smoothed densities", Bioinformatics 20(5):623-628.This plot is useful when a 2D scatterplot of your data would result in an uninterpretable mass of overlaid points. The smoothed... Platforms: Matlab

GEN_SUSAN - Generalized SUSAN 2-D filtering SUSAN filtering with filter kernel W scaled with generalized Gaussian of intensity difference. Different prefiltering functions can be selected as well as width and exponent of the intensity scaling. GEN_SUSAN can produce filtering with caracteristics... Platforms: Matlab