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Reading pixelArray from bitmap 13 Years Ago by Nandomo … the information from the bitmap file when talking about the pixelArray, I know what I have to do it when I… Placement new 12 Years Ago by thekashyap …for ( h = 0; h < GRID_HEIGHT; h++ ) { if ( pixelArray[w][h]->_signal_strength < MIN_SIGNAL_STRENGTH ) ++numPixelsWithLowSignal; } } cout <<…for ( h = 0; h < GRID_HEIGHT; h++ ) free(pixelArray[w][h]); return 0; } /* // OUTPUT: after allocation, before initialization… Binary to Decimal 13 Years Ago by emcyroyale … Pixel pixelTarget = new Pixel(earth,0,0); Pixel [] pixelArray = earth.getPixels(); Color pixelColor = null; int redValue …} System.out.println(" "); pixelTarget = pixelArray[messageArray.length]; pixelTarget.setRed(255); earth.write("SecretMessage… Surfaces must not be locked during blit 13 Years Ago by thekitoper … loop while loop_numx > 0 and loop_numy > 0: pixelarray = pygame.PixelArray(screen) pixelarray[random.randrange(1,1000)][random.randrange(1, 1000)] = (255… Re: Surfaces must not be locked during blit 13 Years Ago by thekitoper … loop while loop_numx > 0 and loop_numy > 0: pixelarray = pygame.PixelArray(screen) pixelarray[random.randrange(1,1000)][random.randrange(1, 1000)] = (255… Simple Image manipulation 11 Years Ago by _Brooksy …pickAFile(); Picture somePicture = new Picture(fileName); Pixel []pixelArray = somePicture.getPixels(); Pixel pixelObj1 = null; int…int greenValue = 0; while(index<pixelArray.length) { pixelObj1 = pixelArray[index]; redValue = pixelObj1.getRed(); blueValue … Overloading 11 Years Ago by Valiantangel …;? The increasedRed() is as follows: public void increaseRed() { Pixel[] pixelArray = this.getPixels(); Pixel pixel = null; int value = 0;… all the pixels while (index < pixelArray.length) { // get the current pixel pixel = pixelArray[index]; // get the value value =… Re: Overloading 11 Years Ago by Valiantangel Does this make sense? public void IncreaseRed ( int percent ) { Pixel [] pixelArray = this.getPixels(); int red = 0 ; double factor = 1 . 0 - ( percent / … the p i x e l s for ( Pixel currPixel: pixelArray ) { red = currPixel . getRed() ; currPixel.setRed ( ( int ) ( red * factor… Problem with atribuition in lists 15 Years Ago by lumeniel … that i don't understand. In [I]image_matrix[/I], a PixelArray object where there is a image. I want to separate… display txt on screen with mouse events 13 Years Ago by wolfeater017 …+1 # get a pixel array of the surface pixArray = pygame.PixelArray(windowSurface) pixArray[480][380] = BLACK del pixArray # draw the text… Bitmap Loading 10 Years Ago by Labdabeta …??? }DIBHeader; struct{ }ExtraBitMasks; struct{ }ColourTable; unsigned int gap1,gap2; struct{ }PixelArray; struct{ }ICCColourProfile; public: void LoadBMP(FILE*); void SaveBMP(FILE*); int… Re: Bitmap Loading 10 Years Ago by Schol-R-LEA …??? } DIBHeader; struct { } ExtraBitMasks; struct { } ColourTable; unsigned int gap1,gap2; struct { } PixelArray; struct { } ICCColourProfile; public: friend std::istream& operator>>… Re: Select moving pixels 15 Years Ago by JamesCherrill …; int b = (pixel) & 0xff;[/CODE] [CODE=java]public class PixelArray{ // useful (?) stuff for image processing via PixelGrabber's pixel array… Image image; private int w, h; private int[] pixels; public PixelArray(Image im) { image = im; w = image.getWidth(null); h = image… Re: help("modules") - error 12 Years Ago by vegaseat … color pickletools webbrowser Polygon colordict pipes whichdb PpmImagePlugin colorsys pixelarray win2kras PsdImagePlugin commands pkgdata win32api PyQt4 commctrl pkgutil win32clipboard… Re: Reading pixelArray from bitmap 13 Years Ago by Moschops If you run this under a debugger, it'll tell you which line of code is causing the crash. Re: Reading pixelArray from bitmap 13 Years Ago by Nandomo My IDE doesn't have a debugger, but I will try that thanks. Re: Reading pixelArray from bitmap 13 Years Ago by Moschops Is there any clue? An unhandled exception? A segfault? Re: Reading pixelArray from bitmap 13 Years Ago by Nandomo I figured it out ^.^ pygame pixelarray image skewing help 13 Years Ago by DragonReeper Okay basically I want to load an image and skew it. Does anyone have any suggestions how I can accomplish this? For a visual representation of what I want to do [CODE]+-+-+-+ |o|o|o| +-+-+-+ |o|o|o| +-+-+-+ |o|o|o| +-+-+-+ To: +-+-+-+ |o|o|o| +-+-+-+ |o|o|o| +-+-+-+ |o|o|o| +-+-+-+ [/CODE] The o's are filled pixels And the … Re: Placement new 12 Years Ago by TrustyTony ... and the fly-weight pattern? Re: Placement new 12 Years Ago by L7Sqr While I think that using the placement new operator in the appropriate place is a powerful tool, I think that your example takes away from any of that. Most of your example deals with the mechanics of defining and construction your pixel matrices. Only a very small portion of the code uses memory allocation - which is the purported reason for the… Re: Placement new 12 Years Ago by mike_2000_17 Nice explanation, but I do have a few things to point out. First, a few details. You make extensive use of variable names, defines and identifiers which start with an underscore character. This is explicitly forbidden by the C++ standard. All identifiers starting with one or two underscore characters are reserved for the compiler vendors for use … Re: Placement new 12 Years Ago by Narue [QUOTE]All identifiers starting with one or two underscore characters are reserved for the compiler vendors for use in their implementation (of either the standard libraries or language extensions, or both).[/QUOTE] Just a minor nit, since I feel the need to defend my own naming convention. ;) What you've said is close enough that "don't use … Re: Placement new 12 Years Ago by mike_2000_17 Well, you are right Narue. I knew about those subtleties, but I generally apply the simple "don't use leading underscores" rule anyways. >>data members like _x and _y are just fine. They are, sure. But what about, if later you decide to eliminate the data member, or change its name, if you rely on the compiler to point out the … Re: Placement new 12 Years Ago by thekashyap Thanks for all the comments. [COLOR="Red"][B]@tonyjv[/B][/COLOR] [quote]... and the fly-weight pattern?[/quote] My apologies, when I started I wanted to continue the article to include the fly-weight pattern as well, but at the end it was 530pm (time to leave) and the article was already long enough so I decided to write a separate one. … Re: Placement new 12 Years Ago by mike_2000_17 >>_*_CLK are #defines (not variables I mean). Do they still pause a problem? Of course. What if something else (anywhere) in the standard libraries' implementation from any compiler-vendor you might want to compile this code with has the same name? After all, these names are reserved for compiler-vendors (or OS implementers), they are … Re: Placement new 12 Years Ago by thekashyap Thanks to moderators for updating. [B]@everyone who commented[/B], the original post is now updated with all corrections. New Common.h is here: [CODE]#ifndef MY_COMMON_HEADER_FOR_PLACEMENT_NEW_EXAMPLE #define MY_COMMON_HEADER_FOR_PLACEMENT_NEW_EXAMPLE #include <cstdio> #include <cstdlib> #include <iostream> using … Re: Binary to Decimal 13 Years Ago by NormR1 [QUOTE]I want to know if my math in the code and by hand is wrong [/QUOTE] Can you explain what your algorithm is and what you are trying to do? The title for this thread is Binary to Decimal. What format is used to represent these values? Are they both Strings? Everything in the computer is binary. You can look at the same byte or groups of … Re: Binary to Decimal 13 Years Ago by emcyroyale This program was an assignment that I was told to do. I am just not sure I understood the explanation of converting binary to decimal correctly. First I had to use an online source to convert text to binary code. Then program takes a int array and I assign the binary code to that, which is in the main function. Then another function takes the … Re: Binary to Decimal 13 Years Ago by NormR1 You need a lot more details on the algorithm to code it. First what is the binary code? How is the binary code embedded in the picture? How is the binary code converted to decimal? Here is a sample code for converting a String into an array of int where each int represents a bit in the String: [CODE] // Create an array of int each element …