c# - byte[] to gray scale BitmapImage -

-

I start with the 128 x 128 array pair and for each double, in the bytes of 1d array with proportional values Change me

Then I take this array of bytes and I am trying to convert it to a memory stream ( datastream below) and assign it to a bitmapImage Has been added to: 

  imgScan.Width = 128; ImgScan.Height = 128; Bitmapmaz by = new bitmap image (); Bi.SourceRect = New Int32Rect (0, 0, width, height); Bi.StreamSource = datastream; ImgScan.Source = bi;

here imgScan is a system. Windows Control. Image

This does not produce the desired image (I just get a white square)

How should I go about this?

I think you will find in your code, there must be a full image file in the stream, of data Not a raw block. Here's a bitmap from a block of data (this is not a grayscale, but you might get this idea): 

  const int bytesPerPixel = 4; Int Stride = Bitespixel * PixelPerline; UInt32 [] pixelbites = new UIT [lincoln * pixelpelleline]; For (int y = 0; y and lt; line count; y ++) {int destinationLineStart = y * pixelsPerLine; Int sourceLineStart = y * pixels on line; For (int x = 0; x & lt; pixelsPerLine; x ++) {pixelBytes [x] = _rgb pixels [x] .Pbgr32; }} Var BMP = Bitmapsource.Creat (PixelPerline, LineCount, 96, 96, Pixel Formats. Pg 32, Blank, PixelBayte, Stride); Bmp.Freeze (); Return BMP;

You have already made bits (byte array) in nested loops, but I have left it so that you can see what comes before creating


Comments

Post a Comment

Popular posts from this blog

c# - sqlDecimal to decimal clr stored procedure Unable to cast object of type 'System.Data.SqlTypes.SqlDecimal' to type 'System.IConvertible' -

-
I'm new to this I'm writing a clr. stored procedure that can be used to get values ​​used in a calculation Call for another stored procedure for Gives an archived methodology int (I think SqlInt32? Value of the table's value is int) which is then necessary to convert to decimal. Here I have the code: Public static integral mood (SQL MDMMYLUE, escalistering AMY type, out of SQLDCM Result) {aResult = 0; Try {SqlConnection conn = New SqlConnection ("Reference Connection = True"); SqlCommand cmd = New SqlCommand ("sp_GetType", conn); Cmd.Parameters.AddWithValue ("@ myValueType", aMyValueType); Cmd.CommandType = CommandType.StoredProcedure; Conn.Open (); Object type = CMD. Exclamation Asser (); Conn.Close (); Decimal type FORCalculation = Convert. ToDecimal (type); Decimal value = convert toDecimal (aMyValue); // ** calculation calc = new calculation (); Decimal result = calorie.docalulation (typefarculation, value); I get an exception...
Read more

Calling GetGUIThreadInfo from Outlook VBA -

-
I need to find the active window'm writing a VBA macro in MS Outlook, which is a specific process. The goal of this is to get the active window / document name even if its original application has more than one document interface. User processor with GetCurrentThreadId is active, I am using GetGUIThreadInfo to get .dll. Here is the correct code: private type RECT as as Left LongPtr top LongPtr right LongPtr down LongPtr termination of private type GUITHREADINFO cbSize as LongPtr flags LongPtr hwndActive LongPtr hwndFocus LongPtr hwndCapture LongPtr as as as as as reset as LongPtr rcCaret as LongPtr hwndCreate as LongPtr hwndMoveSize as HwndMenuOwner end of Private Equity PtrSafe function GetWindowThreadProcessId Lib "user32" (_BVV hnw LongPtr as LongPtr Nig Mr. announced as PtrSafe function GetGUIThreadInfo Lib "user32" _ (ByVal dwthreadid as LongPtr, _ lpguithreadinfo as GUITHREADINFO) LongPtr Sub MyFunction () as dim strWindowTitle string = space as s...
Read more

Obfuscating Python code? -

-
I'm looking for a way to hide my Python source code. print "Hello World!" How can I encode this example so that it is not human-readable? I have been asked to use Base 64 but I'm not sure how. itemprop = "text"> It is limited only, first level ambiguous resolution, but has built-in: byte-code in Python Is a compiler for: dragon-o-m py_compile & lt; Your program.py & gt; creates a .pyo file with a byte-code, and where the docstrings are removed, etc. You can rename .pyo with the .py extension, and python & lt; Your program.py & gt; runs as your program, but it does not have your source code. PS : If your program blur modules like this, you need to rename them with the .pyc suffix (I Not sure it will not break a day), or you can work with .pyo and run them with python -o ... .pyo ( Import should work). This will allow dragon to search your modules (otherwise, Python looks for the .py module).
Read more