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Skeletonization using voronoi

Skeletonization using voronoi
. voronoiskel uses only the pixel on the boundary of the objects,... you can either add qhull to your os path, or keep a copy of it in the working directory. matlab 7.9 (2009b) binary image, image processing, skeleton, skeletonization, thinning .

Interfacing an Arduino with LCDs

Interfacing an Arduino with LCDs
net console application which converts a monochrome 1-bit image into an array to be used ... since much of the image's pixels repeat,... as an example, if there was:. 1, 64, 32, 32, -1 .64 black pixels would be drawn, then 32 white pixels, then 32 black pixels.
Implementation of Laplacian of Gaussion Edge Detection Algorithm using C#

Implementation of Laplacian of Gaussion Edge Detection Algorithm using C#

CPJAImage - Yet another image drawing class

CPJAImage - Yet another image drawing class
pjai_disabled draws the image as disabled (3d monochrome). this flag can not be used with the pjai_grayscale flag.... if clr_default (0xff000000) is set as the transparent color, the color of the pixel at the top left corner ( getpixel (0, 0) ) is used as the transparent color.

Alpha Blended Windows Forms

Alpha Blended Windows Forms
all we need do is draw the window onto a monochrome bitmap and any pixels on the window that are the same colour as ...clientrectangle; e.graphics.drawimage(m_backgroundimage, rect, rect, graphicsunit.pixel); } } private int layeredwindowwndproc(intptr hwnd, int msg, int wparam,

BW Noise Reduction

reduce noise in binary image by counting number of conected pixels. this function gets the binary image and according to connectivity labeld the objects in image and through the numbers of pixels in each connected component

findcircles

provides an example of feature-extraction in a binary image....function provides an example of feature-extraction in a binary image.... the program makes an effort to remove outliers and stray pixels (line 47).

SQL Database Image Storage & Easy Thumbnails

SQL Database Image Storage & Easy Thumbnails
this binary image data from the database is then ... private bool m_use_aspect = true; private bool m_use_percentage = false; private system.drawing.image m_src_image,.../// </summary> public bool usepercentages { get { return m_use_percentage; } set { m_use_percentage = value;

imOverlay

imOverlay
the mask is a binary image the same size as the base image.... in this case the pixels of the base image within the mask will be replaced by the pixels of the 'color' image. the aim of this function was to be easy to use,

Visualize area of multiple shapes

Visualize area of multiple shapes
measure and visualize the area of each individual shape in a binary image.... on one hand bwarea allows for two types of area measurements ('digital', or sum of pixels and 'analog'), but cumulates into a single value the areas of all non-connected shapes in an image;

Geting pixel color from screen shoot image

Geting pixel color from screen shoot image
and catch the color of the pixel to clipboard with a single mouse click....simple tool just to get the hex color code of selected pixel. or better yet, let's make our one,... next thing to do on mousemove event is to get pixel color, and display it on some label. note the tostring("x"

ColorFinder - Retrieve the color of any pixel on the Desktop

ColorFinder - Retrieve the color of any pixel on the Desktop
you can use this tool to pick color from any pixel on the desktop. how to use the tool....of the desktop and from it get the color // of the pixel at the current mouse pointer position cdc ... byte bval = getbvalue(m_colcurrent); // display the pixel color in different formats str.format("%02x,

Accurate Fast Marching

Accurate Fast Marching
calculates the shortest distance from a list of points to all other pixels in an 2d or 3d image,...function skeleton will calculate an accurate skeleton (centerlines) of an object represented by an binary image / volume using the fast-marching distance transform.

Collision - A C# Game, part 3: pixel perfect collision detection

Collision - A C# Game, part 3: pixel perfect collision detection
this means you may find the game does not appear pixel perfect,... per pixel collisions. which leaves me with the collision code....that rectangle for both bitmaps and then step through them together to see if any pixel position in the intersected rectangle contains a pixel vale that is not masked

A class for creating round rectangles in GDI+ with pixel accurate symmetry

A class for creating round rectangles in GDI+ with pixel accurate symmetry
that it is often not completely symmetric at the pixel level.... it may be because there are more pixels to work with, or it is just not noticeable.... color color, int radius, int width) { int dia = 2*radius; // set to pixel mode int oldpageunit = pgraphics->setpageunit(unitpixel);

Color Picker

Color Picker
except white and black....and allows to select all base colors derived from an rgb (also white and black). colorviewers (namespace fuliggine.... g, b. after that, i find the step of color done in every pixel and draw the control line by line.

Progress Indicators vs. Progress Cursor

Progress Indicators vs. Progress Cursor
public intptr hbmcolor; } then we need to generate bitmap with percentage text.... making a cursor is simple. you can also create a color cursor while standard cursor loads only monochrome *.cur files. more. i want to create an animated cursor,

C# Video TimeLine Control for DirectShow & VLC Like Adobe AfterEffects

C# Video TimeLine Control for DirectShow & VLC Like Adobe AfterEffects
invented to retain compatibility with existing monochrome tvs. broadcasting color took 0.... including the frame rate, which was set to 30×1.000/1.001 hz. so an "hour of timecode" at a frame rate of 30 frame/seconds was longer than an hour of wall-clock time

Split a Single-Pixel-Width Connected Line Graph Into Line Segments by The Hit-and-Miss Transformation

Split a Single-Pixel-Width Connected Line Graph Into Line Segments by The Hit-and-Miss Transformation
6 kb. an algorithm is proposed to split a single-pixel-width connected line graph into line ... 1.1 line graph and line segments. a single-pixel-width connected line graph (figure 1 (a)) can ... i.e., the single-pixel-width connected line graph. 1.2 challenges.

Linear Contrast Stretch of Grayscale Images

Linear Contrast Stretch of Grayscale Images
processing operations manipulate the individual pixels of an image to yield another image. point operations transform every single pixel in the input image into the resulting output pixel,

Implementation of Laplacian of Gaussion Edge Detection Algorithm using C#

Implementation of Laplacian of Gaussion Edge Detection Algorithm using C#
graylevel image as input and produces another binary image as output.... we access and modify a pixel value using pointer. the next example utilizes the “unsafe” block in c#.
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