pixels

问题 namespace txtToImg { public partial class Form1 : Form { public Form1() { InitializeComponent(); string fileContent = File.ReadAllText("D:\\pixels.txt"); string[] integerStrings = fileContent.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries); int[] integers = new int[integerStrings.Length]; for (int n = 0; n < integerStrings.Length; n++) { integers[n] = int.Parse(integerStrings[n]); } Bitmap my = new Bitmap(512, 512); for (int i = 0; i < 512; i++) for (int j = 0; j < 512; j++)

问题 I have one activity, my activity contains one ImageView.I have implemented OnTouchListener for ImageView.Here I want find pixels color where i touch in image.Please let me know how to find pixels color.I have one ideas, -->In ImageView where i touch just find X and Y coordinate and find pixels in same X and Y coordinate and find pixels color.Please let me is it possible. Please give any suggestion or document for to do this please. with ur reference i wrote code for bitmap, int mId=R.drawable

问题 I have a small bmp file and I want to get the RGB values of each pixel and output those values into a txt file if R, G, and B aren't all zero. I wrote the following program; it reads the header data correctly, but the RGB values aren't coming up. I assume I did something wrong in the for loop. #include <iostream> #include <fstream> #include <cstdlib> using namespace std; int main() { ifstream ifs; ofstream ofs; char input[80]; char output[80]; cout<<"Input file name"<<endl; cin>>input; ifs

问题 Let's draw a line and a circle: canvas.create_line(x0,y0,x1,y1) canvas.create_oval(x0,y0,x1,y1) How to count the number of pixels each one of them has ? 回答1: You can't. Tkinter gives you no way to get that information. 来源： https://stackoverflow.com/questions/30104270/tkinter-number-of-pixels-of-a-line-oval

问题 I checked the following article in which it presented the following mixing: rem font size with pixel fallback @function calculateRem($size) { $remSize: $size / 16px; @return $remSize * 1rem; } @mixin font-size($size) { font-size: $size; font-size: calculateRem($size); } I feel very confortable using rem on my projects, after placing font-size: 62.5% on the html so 1rem = 10pixels . But I would like to know if there is a mixing or a method to create a pixel fallback for any rem used in a whole

问题 I am trying to create a guassian filter without using ConvolveOp. I am having a lot of problems trying to get this to work, i have gotten a grey scale filter to work, but for this one i am having problems finding the location of a pixels 8 neighbors, so i can apply the filter. here is what i have so far. Is this the right way to approach getting each of the pixels? public class Gaussian implements Filter { public void filter(PixelImage pi) { Pixel[][] data = pi.getData(); Pixel[][] original =

问题 I would like to know if it is possible to use canvases and javascript to scan an image for certain pixel colors and use them to make a map. e.g: find #ff0000 and set it to the number 1 on the map and set #000000 to 2 and so on to make a map like: var map = [ [1,1,1,1,1], [1,0,0,0,1], [1,0,2,0,1], [1,0,0,0,1], [1,1,1,1,1] ]; So basically i want to know how to get the code to read an image and find the colors i want it to search for and then plot them out in a variable 回答1: This should be a

问题 I'm new to image processing in java. Actually what I'm trying to do is to save all the pixel values of an image into an array rgbArray[] , and the problem is that I'm getting the same values in all the indexes of an array i.e. all the indexes of the array have the same value. A part of code is given below: int[] rgbArray=new int[w*h]; // Array to store the Pixel values BufferedImage buffer = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); buffer.getRGB(0, 0, w, h, rgbArray, 0, w ); for

问题 I am new at android and I have a project to take a picture save it and compute its signature. I've taken the picture and saved it already. Its signature consists in computing the mean of all pixels values in RGB. The problem is that I dont know how to work with pixels and colors. Can you help me with some explanations and/or tutorials and/or code. Thank you 回答1: Here is code to get pixel from bitmap. int width = bitmap.getWidth(); int height = bitmap.getHeight(); int pixel; for (int x = 0; x

问题 I'm trying to make a program which will fit text into a rectangle (x by y) depending on the text, the font and the font size Here is the code def fit_text(screen, width, height, text, font): measure_frame = Frame(screen) # frame measure_frame.pack() measure_frame.pack_forget() measure = Label(measure_frame, font = font) # make a blank label measure.grid(row = 0, column = 0) # put it in the frame ########################################################## # make a certain number of lines ######