bitmapimage

问题 I am trying to convert the camera captured image to 8 bit image. And that should be grayscale image. I searched in forums but could able to find the way to convert to 8 bit image. Any help or suggestion will be help ful to me. Thanks.... 回答1: You have given too little information. First of all, what is the image format your camera delivers? Is it some RAW format, jpeg, or what else? Doing it programmatically (using C for the example): The best way to go was to use some image loading library

问题 I am trying to convert the camera captured image to 8 bit image. And that should be grayscale image. I searched in forums but could able to find the way to convert to 8 bit image. Any help or suggestion will be help ful to me. Thanks.... 回答1: You have given too little information. First of all, what is the image format your camera delivers? Is it some RAW format, jpeg, or what else? Doing it programmatically (using C for the example): The best way to go was to use some image loading library

问题 I am using this code snippet to load various image files: BitmapImage bitmap = new BitmapImage (); bitmap.BeginInit (); bitmap.UriSource = new System.Uri (path); bitmap.CreateOptions = BitmapCreateOptions.PreservePixelFormat; bitmap.EndInit (); This works fine for TIFF files stored as RGB, RGB+Alpha and CMYK. However, if I try to load a TIFF file using CMYK colors and an alpha channel, I get an exception (the file format is not recognized as being valid by the decoder). I was previously using

问题 I am using this code snippet to load various image files: BitmapImage bitmap = new BitmapImage (); bitmap.BeginInit (); bitmap.UriSource = new System.Uri (path); bitmap.CreateOptions = BitmapCreateOptions.PreservePixelFormat; bitmap.EndInit (); This works fine for TIFF files stored as RGB, RGB+Alpha and CMYK. However, if I try to load a TIFF file using CMYK colors and an alpha channel, I get an exception (the file format is not recognized as being valid by the decoder). I was previously using

问题 I am trying to test create a simple cipher that xor key with a bitmap image. import os, io, hashlib from PIL import Image from array import array from itertools import cycle key = "aaaabbbb" def generate_keys(key): round_keys = hashlib.md5(key).digest() return bytearray(round_keys) def readimage(path): with open(path, "rb") as f: return bytearray(f.read()) def generate_output_image(input_image, filename_out): output_image = Image.open(io.BytesIO(input_image)) output_image.save(filename_out)

问题 I am trying to test create a simple cipher that xor key with a bitmap image. import os, io, hashlib from PIL import Image from array import array from itertools import cycle key = "aaaabbbb" def generate_keys(key): round_keys = hashlib.md5(key).digest() return bytearray(round_keys) def readimage(path): with open(path, "rb") as f: return bytearray(f.read()) def generate_output_image(input_image, filename_out): output_image = Image.open(io.BytesIO(input_image)) output_image.save(filename_out)

问题 I am trying to test create a simple cipher that xor key with a bitmap image. import os, io, hashlib from PIL import Image from array import array from itertools import cycle key = "aaaabbbb" def generate_keys(key): round_keys = hashlib.md5(key).digest() return bytearray(round_keys) def readimage(path): with open(path, "rb") as f: return bytearray(f.read()) def generate_output_image(input_image, filename_out): output_image = Image.open(io.BytesIO(input_image)) output_image.save(filename_out)

问题 I need to find out how to convert a BitmapImage object into a SoftwareBitmap in order to save it to a file without losing resolution as I would do with RenderTargetBitmap. I have the following situation: private void TakePic() { BitmapImage currentImage = new BitmapImage(new Uri("http://.../image.jpg")); ImageControl.Source = currentImage; } private void SavePic() { StorageFile file = await folder.CreateFileAsync(...); using (IRandomAccessStream stream = await file.OpenAsync(FileAccessMode

问题 I am developing an app in which, i click image using camera and show it into an grid view. but my image not showing in image view without showing any error. but when i debug the project i notice that, my array list is empty. i don't understand exactly where my code going wrong. here is my code : /* private GridView gvGallery;*/ protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data

问题 I am developing an app in which, i click image using camera and show it into an grid view. but my image not showing in image view without showing any error. but when i debug the project i notice that, my array list is empty. i don't understand exactly where my code going wrong. here is my code : /* private GridView gvGallery;*/ protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data