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Unable to read the EBCDIC 037 decoded image (Java)

I have a EBCDIC file from which i extracted images. However, there is some data on the images which is key source in identifying my transactions.
Assume that i have an image as "stackoverflow logo" stored under name "img1.jpg" on my desktop and when i read it using the following code, it works
String inputImage = "C:\\Desktop\\img1.jpg";
File imageFile = new File(inputImage);
BufferedImage image1 = ImageIO.read(imageFile);
System.out.println(image1);
However, when i attempt the same with an image decoded from EBCDIC conversion, it returns null.
The difference i observed is that there is no color associated in the decoded image. Is there any way to read these images and retrieve the text on the image. Following is not the exact image which i am working on, but just to give an idea i am sharing a sample from internet.
Note: The image am working on looks like a Scanned image (Grayscale)
Example:
Also, I observed that if i open the decode file and do a screen capture via snipping tool and store it as jpg file (which already is jpg) and read it, system is reading that file. not sure where is the issue, is it compression or color coding or format.

Thank you everyone.
I used Tess4j to decode the TIFF image. Unfortunately the information i was looking for isn't available in the decoded text. But, done with the POC.
used the following library and added eng.traineddata in the folder where images exist
import net.sourceforge.tess4j.*;
String inputImage = "C:\\Desktop\\img1.tiff";
File imageFile = new File(inputImage);
ITesseract imageRead = new Tesseract();
imageRead.setDataPath("C:\\Desktop\\");
imageRead.setLanguage("eng");
String imageText = imageRead.doOCR(imageFile);
System.out.println(imageText);

Not able to delete image file after image conversion from PNG to TIF

I am creating .PNG file using BufferedImage with some test. Now after creating image I am trying to convert .PNG image to .TIF, which is working fine. Now once I create TIF image, I want to delete PNG image. But because of some reason, I am not able to do this. There is no any exception for this.
Here is my code
File pngFile = null;
FileOutputStream fOut = null;
try {
pngFile = new File("C:\\Test.PNG");
fOut = new FileOutputStream ("C:\\Test.TIF");
RenderedOp src = JAI.create("fileload", "C:\\Test.PNG");
TIFFImageEncoder encoder = new TIFFImageEncoder (fOut, null);
encoder.encode (src);
}catch(Exception e) {
}finally {
fOut.close();
System.out.println(pngFile.delete());
}

Well there's definitely no exception since your catch block is empty.
Something may be still holding a handle to the file, not allowing it to be deleted.
I would examine JAI.create, RenderedOp and the TiffEncoder.

Instead of providing the file path as string you can provide input stream and in finally first close the input stream and then delete the file. This may work.

I was facing same problem sometime before. The best way to do it in this is to first dispose the resources using the image object you have create, like below-
var image = Image.FromFile(pngTarget); // here pngTarget is my PNG file's name along with complete path.
// your code to convert png to tiff
.
.
.
at the end of the method you can write below -
image.Dispose(); // the image object I have created above
File.Delete(pngTarget); // delete the file
Also, don't forget to flush/close the memory stream, if using any.
Thanks.

Universal Image Loader for external storage files

Hello I use Universal Image Loader to load images from the device , now it works, but if the file path contains a "space character" the image does not get displayed and log records show that there is a FileNotFoundException .
I tried to open the file in a thread using java io and it opens and I can read it.
the file name :
/mnt/sdcard/WhatsApp/Media/WhatsApp Images/IMG-20121014-WA0001.jp
when the Exception thrown
it replace the space with a %20 and this what makes the exception thrown.
My code:
ImageLoader.getInstance().displayImage(
Uri.fromFile(
new File(cursor.getString(cursor.getColumnIndex(
MediaStore.Images.Media.DATA)))).toString(),
holder.mImage);
works only when no spaces in the path ,
Any help

The other answer unfortunately isn't too clear on what fileName is so after some additional digging I managed to use local image with imageloader using:
Sample Code:
string imgPath = "/mnt/sdcard/WhatsApp/Media/WhatsApp Images/IMG-20121014-WA0001.jpg";
String decodedImgUri = Uri.fromFile(new File(imgPath)).toString();
ImageLoader.getInstance().displayImage(decodedImgUri, imageView);
Android loading local image with space in path and with universal image loader also helped to resolve this.

I had the same problem and I found this solution.
String uri = fileName.getUri().toString();
String decodedUri = Uri.decode(uri);
ImageLoader.getInstance().displayImage(decodedUri, imageView);

Java URL: Unknown Protocol "C"

I know there are similar questions to this one on SO (like this one), however, after reading through the list of "Questions with similar titles", I still feel strongly that this is unique.
I am working with the iText library to generate PDFs from inside a Swing application. iText's Jpeg class requires a URL in its constructor to locate an image/jpg that you want to add to the PDF file.
When I set this URL to the absolute file path of my JPG file, I get a MalformedURLException claiming unknown protocol: c ("c" being the C:\ drive on my local disk).
Is there any hack/circumvention to this, or do I have to host this JPG somewhere and have the URL find it over the net? Here is the code that is failing:
try {
String imageUrl = "C:\Users\MyUser\image.jpg";
Jpeg image = new Jpeg(new URL(imageUrl));
} catch(Exception exc) {
System.out.println(exc.getMessage());
}
Please note: The URL does properly escape the string (thus "\" are converted to "\ \", etc.).
Thanks in advance!

You need to turn the path to the image.jpg file into a file:// URL, like this:
String imageUrl = "file:///C:/Users/MyUser/image.jpg";
Otherwise it interprets the C as the URL protocol.

Try with
String imageUrl = "file:///C:/Users/MyUser/image.jpg";

Try this
try {
String imageUrl = "file:///C:/Users/MyUser/image.jpg";
Jpeg image = new Jpeg(new URL(imageUrl));
} catch(Exception exc) {
System.out.println(exc.getMessage());
}

In my case the issue was that I was having "%" in my file name. Once I changed it, the file was loaded successfully. So I guess special characters are not allowed in file names, at least in windows.

Searching the file with its directory and adding in the image to assign to the ImageView
File file = new File("F:/a.jpg");
Image image = new Image(arquivo.toURI().toString()); //here is magic happens
imageView.setImage(image);

What is the correct path for Toolkit.getImage()?

I need to upload an image file and generate a thumbnail for the uploaded file in my JSF webapplication. The original image is stored on the server in /home/myname/tomcat/webapps/uploads, while the thumbnail is stored in /home/myname/tomcat/webapps/uploads/thumbs. I'm using the thumbnail generator class I copied from philreeve.com.
I have successfully uploaded the file with help from BalusC. But using Toolkit.getImage(), I can't access the image.
I used the uploaded file's absolute path, like so:
inFilename = file.getAbsolutePath();
The relevant code from the thumbnail generator is:
public static String createThumbnail(String inFilename, String outFilename, int largestDimension) {
...
Image inImage = Toolkit.getDefaultToolkit().getImage(inFilename);
if (inImage.getWidth(null) == -1 || inImage.getHeight(null) == -1) {
return "Error loading file: \"" + new File(inFilename).getAbsolutePath() + "\"";
}
...
}
Since I am already using the absolute path, I don't understand why it is not working. I have also used the following values for inFilename, but I always get the "Error loading file...".
/home/myname/tomcat/webapps/uploads/filename.ext
/uploads/filename.ext
But I did check the directory, and the image is there. (I uploaded using /home/myname/tomcat/webapps/uploads/filename.ext, and it works.) What is the correct path for the image in that directory? Thank you.
Update
I got the code to work by using:
Image inImage = ImageIO.read(new File(inFilename));
I still don't understand why Toolkit.getImage() does not work though.

Are you sure it's a JPEG file? Use an image viewer to make sure nothing bad happened to the file during upload (or that it was an image to begin with).
Also, use new File(inFilename).exists() to make sure the path is correct. I also suggest to print new File(inFilename).getAbsolutePath() in error messages because relative paths can hurt you.
That said, the rest of the code looks correct.

The problem is that Toolkit.getImage() does not return the image immediately. The issue is well-described in this bug report, a relevant extract of which is here:
This is not a bug. The submitter is not properly using the asynchronous
Image API correctly. He assumes that getImage loads all of the image's bits
into memory. However, it is well documented that the actual loading of
bits does not take place until a call to Component.prepareImage or
Graphics.drawImage. In addition, these two functions return before the
Image is fully loaded. Developers are required to install an ImageObserver
to listen for notification that the Image has been fully loaded. Once they
receive this notification, they can repaint the Image.
I found that the answer to this question works well:
Image image = new ImageIcon(this.getClass().getResource("/images/bell-icon16.png")).getImage();