Convert 2D array to Image in Java? -


I have a 2D array (this is only 1 -0 value), but its type is int [] [].

Now I want to convert that array into an image (binary image black and white). But I did not find the appropriate answer for my question. I have searched Google and this website can someone help me ??

I used the following code, but it 

  string path = "c: \\ user \\ cyrus \\ desktop \\ test .jpg"; BufferedImage image = new BufferedImage (b.length, b [0]. Length, BufferedImage.TYPE_INT_RGB); For (int x = 0; x & lt; b.length; x ++) {// b for my 2D array (int y = 0; y & lt; b [x] length; y ++ ) {Image.setRGB (x, y, b [x] [y]); }} File FileFile = New File (Path); Try {imageIO.write (image, "jpg", ImageFile); } Hold (IOException e) {e.printStackTrace (); }   
 // after modifying my code  
  string path = "c: \\ user \\ cyrus \\ desktop \\ test. jpg "; BufferedImage image = new BufferedImage (a.length, a [0]. Length, BufferedImage.TYPE_INT_RGB); For (int x = 0; x & lt; a.length; x ++) {for (int y = 0; y & lt; a [x] length; y ++) {int value; If (a [x] [y] == 1) value = new color (255,255,255) .getRGB (); Other values ​​= new color (0,0,0) .getRGB (); Image.setRGB (x, y, value); }} File FileFile = New File (Path); Try {imageIO.write (image, "jpg", ImageFile); } Hold (IOException e) {e.printStackTrace (); }   
 but return the wrong image   
 
 
 Can you get specific results? Did it throw some exception? Or the program ended normally, but the results you did not achieve?  
 You should note that here you want to work with a binary image, then what is the reason for choosing a GPG? As I know, JPG color triplet is not a native representation of RGB (for example, as BMP). A JPEG file is a "container" of the data sequence, which has a lot of information in its title (XIF, QT, ...), marked by marker. To deal with the "straight" pixel value as your array, the data sequence should be "decode" in the JPG file, after which you will play this image, the main image data will be "encoded" again to the JPG stream.  
 To play directly with pixel value, I suggest that you work with other formats (like TGA, PNG, ...)

Comments

Post a Comment

Popular posts from this blog

Verilog Error: output or inout port "Q" must be connected to a structural net expression -

I get the error every time, I try to compile. I'm not sure why anyone can help is? I'm new to verilog. Module D_FF (clerk, d, reset_n, q); Input D, Clack, reset_en; Output Q; reg Q; lab4_gdl f1 (.lk (~ clk), d (d), .q.m (qm)); lab4_GDL f2 (.Clk (Clk), D (QM), .Q (Q)); Always start at @ (posedge clk, neggeous reset_n) (Reset_n == 0) Q & lt; = 0; Other questions & lt; = D; Edit End: The problem is what we are asking to do: In this section, you apply the memory / registration circuit on the AlterEdie 2 board. will do. The circuit has the following specifications: The present value of swift SW15-0 on the D2 board should be shown in four hexadecimal four sections of HEX3-0. This part of the circuit will be combination logic. To use an active-less asynchronous reset and KEY1 to use KEY0 as the clock input, you must store SW15-0in in a 16-bit register in the value The register should be enabled to have a 16-bit positive edge, which uses the embedded D flip-flo
Read more

jasper reports - How to center align barcode using jasperreports and barcode4j -

I use iReport 5.5.0 . How to align a barcode component to the center The relevant piece of my jrxml is below & Lt; JR: Code 128 xmlns: JR = "http://jasperreports.sourceforge.net/jasperreports/components" xsi: schemaLocation = "http://jasperreports.sourceforge.net/jasperreports/components http: //jasperreports.sourceforge Purge / xsd / components.xsd "textPosition =" bottom "& gt; & Lt; Jr: codeExpression & gt; & Lt; [CDATA [$ F {number}]] & gt; & Lt; / Jr: codeExpression & gt; & Lt; / Jr: Code 128 & gt; & Lt; / componentElement & gt; "Text" itemprop = "text"> Create a style after this, it is called "barcode", like: & lt; Style name = "barcode" fontName = "Helvetica" fONTSIZE = "10" hAlign = "center" valign = "center" /> and set the property of your barcode element to "barcode".
Read more

c# - ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type already has the same primary key value -

In brief, the wrapper module is inserted during posting and the status of an entry is changed to 'modified' . Before changing the state, the state is set to 'separate', but calling attachments () causes the same error to be thrown away. I am using EF 6. Model / wrapper class public class avi model {public A is a {get; Set; } Public listing & lt; B & gt; B {received; Set; } Public cc {receipt; Set; }} Administrator edit public functioning (int? id) {if (id == null) {new HttpStatusCodeResult (HttpStatusCode.BadRequest); } If (! Conveyor Access (id.Value)) new HTTPTitus code result (HTTP status code. Forbidden); Var aViewModel = new AViewModel (); aViewModel.A = db.As.Find (id); If (aViewModel.Receipt == zero) {return HttpNotFound (); } aViewModel.b = db.Bs.Where (x => x.aid == id.Value) .Oolist (); AViewModel.Vendor = db.Cs.Where (x => x.cid == aViewModel.a.cID) .FirstOrDefault (); See Return (aViewModel); } [HTPFost] [Valid AntitiferousTeacon
Read more