Writing One Dimensional Array as Image ( Java )

Welcome back ,I'm still writing the application from the last post, I founded that I must redraw the image to show the result , I faced Many problems while writing the Method write Image first the image was totally black which is not correct , I searched the web for a solution especially stack overflow site , I'm gonna tell you what I gain , I hope the post help you in shaa Allah .

public void write_image(int[] image_1d, int width, int height) throws IOException {
WritableRaster raster= Raster.createWritableRaster
(new PixelInterleavedSampleModel(0, width,height, 1,
1920,new int[] {0}), new Point(0,0));

int k =0 ;
  for(int i = 0 ; i < width ; i++ )
{
for(int j = 0 ; j < height ; j++)
{
raster.setSample(i,j,0,image_1d[k]);
k++;
}
}
BufferedImage image =new BufferedImage(width,height,
BufferedImage.TYPE_BYTE_BINARY);

image.setData(raster);
File output=new File("ImageName.jpg");
ImageIO.write(image,"jpg",output);
}

Please share if you like.

Thanks for reading my blog post.

Ahmed Ghazey.

Comments

DevExpress C# Chart Tutorial

Hello , this blog post about Charting in DevExpress , I faced many problems I visited hundreds of pages to solve this problems , actually it was the first time I use DevExpress Charts, Work is not like school or university , in school if you don't know thing you can learn it any time you want , in work you have to do today task yesterday, I like to share my knowledge and skills with you , I hope this Post help you . // clear series on chart chart.Series.Clear(); // clear Titles of chart chart.Titles.Clear(); // legend alignment chart.Legend.AlignmentHorizontal = LegendAlignmentHorizontal.Center; chart.Legend.AlignmentVertical = LegendAlignmentVertical.Bottom; chart.Legend.Direction = LegendDirection.LeftToRight; // creating series // series view Type example Line DevExpress.XtraCharts.Series series = new DevExpress.XtraCharts.Series("series name ", ViewType.Line); // add title DevExpress.XtraCharts.ChartTitle chtTitle = new DevExpress.XtraCharts.Cha...

Designing Entity Relationship Diagram (ERD)

Al Salmo Aliko . Hello, in this post I'll discuss with you how to design good Entity Relationship Diagram ERD . this article for: IT Students learning about database. you are having difficulties in creating ERD. you are developer that need help in database design. let's ask ourselves Why good database design is good ? or why we need ERD? when I started programming Eng / Eman Ahmed was my First teacher, she said you must write your code with pen, and now I told you good database design start with paper and pen or in technological terms start with ERD, ERD is the model which shows logical layout of your database. let's List some advantages of good database design : very low or no redundant data is stored. supporting planed or unplanned queries. good design easy to maintain and modify. from first glance you can understand it. an ERD consist from Entities and relationships between them; there exist...

Sigmoid Function

Hello all, Sigmoid Function or Logistic Function , it is used in Machine Learning problems for the purpose of learning (Neural network ) on curves. its range between ]0,1[ it is horizontal asymptotic on 0 and 1, because of its range between 0 and 1 it is used in classification using threshold for example if we take 0.5 as a threshold values greater than 0.5 are considered Ones and values less than or Equal 0.5 considered 0. it has the following formula : and it shape as following : from wikipedia so it accept differentiation over its domain unlike Step Function. differentiation of sigmoid function : I finished the article , i hope you understand it . Thanks for your time and effort if you like it share and follow me :)

Ahmed Ghazey

Search This Blog