bmp

Python Pygame doesn't display images correctly

北城以北 提交于 2019-12-02 03:35:57
I'm new to Python and I started learning with "Python crash course" by Eric Matthes. I'm in the beginning of Pygame chapter and I follow the code, but my loaded images always look damaged and I don't know why. Code is from the book. First file: import pygame class Ship(): def __init__(self, screen): """Initialize the ship and set its starting position.""" # Load the ship image and get its rect. self.image = pygame.image.load('ship.bmp') self.screen = screen self.rect = self.image.get_rect() self.screen_rect = screen.get_rect() # Start each new ship at the bottom center of the screen. self.rect

converting bmp to jpg in java

旧街凉风 提交于 2019-12-02 01:49:39
问题 How do you convert bmp to jpg in Java? I know how to use the ImageIO way but is there a much faster or better way of doing it? This is the ImageIO way of doing that I found on the web. `//Create file for the source File input = new File("c:/temp/image.bmp"); //Read the file to a BufferedImage BufferedImage image = ImageIO.read(input);` //Create a file for the output File output = new File("c:/temp/image.jpg"); //Write the image to the destination as a JPG ImageIO.write(image, "jpg", output);

Should bmp files be used for websites

纵然是瞬间 提交于 2019-12-01 22:15:41
问题 Is there a problem - except with the filesize - when using bmp files for websites? 回答1: With browsers post-2002 or with Internet Explorer, there is no problem, they will display it. IE supported it and the others (you can find the code for Mozilla/Firefox and for Chrome/WebKit) followed suit to stay compatible. The only issue is indeed size, which means: a lot of unnecessary traffic from your web host, much longer download times for users. If you need lossless compression, use PNG: it's

Need help converting a BMP image to a matrix in [R]?

僤鯓⒐⒋嵵緔 提交于 2019-12-01 19:47:15
I'm very new to R, and I was wondering if there was a simple way to convert a BMP image to a matrix in R. Mainly, I'm looking for any package that can help. The values of each element in the matrix would correspond to colors. A search for "bmp" on the CRAN packages list pulls up bmp and some others, for brevity I will just use this package. library(bmp) fl <- system.file("images", "5HT1bMARCM-F000001_seg001_lsm.bmp", package = "bmp") b <- read.bmp(fl) This object is an array, with some information about the file: str(b) int [1:206, 1:206, 1:3] 107 111 119 123 115 119 119 139 143 143 ... - attr

BMP image header - biXPelsPerMeter

匆匆过客 提交于 2019-12-01 14:27:27
I have read a lot about BMP file format structure but I still cannot get what is the real meaning of the fields "biXPelsPermeter" and "biYPelsPermeter". I mean in practical way, how is it used or how it can be utilized. Any example or experience? Thanks a lot biXPelsPermeter Specifies the horizontal print resolution, in pixels per meter, of the target device for the bitmap. biYPelsPermeter Specifies the vertical print resolution. Its not very important. You can leave them on 2835 its not going to ruin the image. (72 DPI × 39.3701 inches per meter yields 2834.6472) Think of it this way: The

C# - Remove Bitmap padding

你离开我真会死。 提交于 2019-12-01 14:12:39
I was wondering if there's a way in order to remove the padding generated by the 24 bit Bitmap for each scan line. What I mean is like this : Original [Pure Cyan 24 Bit BMP] : FF FF 00 FF FF 00 FF FF **00 00** FF FF 00 FF FF 00 FF FF 00 Desired output [Removed Padding] : FF FF 00 FF FF 00 FF FF **00** FF FF 00 FF FF 00 FF FF 00 Here's my code for getting the pixel data. Bitmap tmp_bitmap = BitmapFromFile; Rectangle rect = new Rectangle(0, 0, tmp_bitmap.Width, tmp_bitmap.Height); System.Drawing.Imaging.BitmapData bmpData = tmp_bitmap.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite

How can I load 8 bit bmp with OpenGL?

╄→гoц情女王★ 提交于 2019-12-01 13:52:39
Here is my situation: I need to preload 2000 images and display them in sequence to be an animation in 60 fps. Currently, I am using OpenGL to load bmp files, but due to memory limit, I can only preload up to 500+ images. How can I solve this problem? I can so far come up with two directions of solutions: First, maybe I can load 8 bit bmp images to save memory. But I have difficulty in using glDrawPixels . Secondly, if possible can I load jpeg directly? Thanks for any advice! The reason for not using video is that I need to change to animation speed by skipping one or more images as you can

BMP image header - biXPelsPerMeter

无人久伴 提交于 2019-12-01 13:21:35
问题 I have read a lot about BMP file format structure but I still cannot get what is the real meaning of the fields "biXPelsPermeter" and "biYPelsPermeter". I mean in practical way, how is it used or how it can be utilized. Any example or experience? Thanks a lot 回答1: biXPelsPermeter Specifies the horizontal print resolution, in pixels per meter, of the target device for the bitmap. biYPelsPermeter Specifies the vertical print resolution. Its not very important. You can leave them on 2835 its not

How to convert Wbmp to Png?

人走茶凉 提交于 2019-12-01 05:55:41
After spending much time researching about this on Google, I could not come across an example of converting a Wbmp image to Png format in C# I have download some Wbmp images from the internet and I am viewing them using a Binary Editor. Does anyone have an algorithm that will assist me in doing so or any code will also help. Things I know so far: First byte is type* (0 for monochrome images) Second byte is called a “fixed-header” and is 0 Third byte is the width of the image in pixels* Fourth byte is the height of the image in pixels* Data bytes arranged in rows – one bit per pixel: Where the

How to access each byte in a bitmap image

北城以北 提交于 2019-11-30 15:59:14
Say I have a bitmap image, is it possible to iterate through all the individual bytes in the image? If yes, how? I found this: http://channel9.msdn.com/forums/TechOff/108813-Bitmap-to-byte-array/ Saying that you could use a Memorystream and the .Save method it'd look like this: System.Drawing.Bitmap bmp = GetTheBitmap(); System.IO.MemoryStream stream = new System.IO.MemoryStream(); bmp.Save(stream, System.Drawing.Imaging.ImageFormat.Bmp); stream.Position = 0; byte[] data = new byte[stream.Length]; stream.Read(data, 0, stream.Length); If you need to access the pixel information, the super-slow