Saving an image as a table of grayscale values?

I have an image that is in grayscale and I need a table that displays each pixels grayscale value. Is there a way to save the image in some tabular format or can I convert it any other way in photoshop?

You have posed a reasonable question. The short answer is that Photoshop does not have a utility to provide the data you require as you would like it. The closest feature it has which may be of some use is the measurement facility in the Extended version of Photoshop.
Using the measurement facility you can draw a selection around an area of your choosing (one of the rocks, for example) and take the measurement. It will provide you with several pieces of data including Gray value max, min, mean, median, integrated density and histogram. Area & perimeter of the selected area are also included and a few other parameters. All of these data including the numerical data of the histogram can be exported out of Photoshop to be used in a spreadsheet. If these data were useful, you could do a selection around the other rock and do a comparison.
The raw data behind an image can be had from its psd file, but you need to know have some tools to digest that data.
Paulo

Similar Messages

Grayscale value of a pixel in an image

Hi all,
I have an image . I want to read the image and find out its grayscale value of each pixel.
I have carried out several methods and used variety of classes to get the value of each pixel but all my effort went in vain.
It would be great if someone could write it for me from scratch.
Regards.

import java.awt.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.io.*;
import javax.imageio.ImageIO;
import javax.swing.*;
public class GrayReader extends JPanel
    BufferedImage image;
    BufferedImage grayImage;
    JLabel label;
    JLabel red;
    JLabel green;
    JLabel blue;
    JLabel gray;
    public void showPixel(Point p)
        int rgb = image.getRGB(p.x, p.y);
        int r = (rgb >> 16) & 0xff;
        int g = (rgb >> 8) & 0xff;
        int b = (rgb >> 0) & 0xff;
        int grgb = grayImage.getRGB(p.x, p.y);
        int gVal = grgb & 0xff;
        red.setText(String.valueOf(r));
        green.setText(String.valueOf(g));
        blue.setText(String.valueOf(b));
        gray.setText(String.valueOf(gVal));
    private JPanel getImagePanel(MouseMotionListener l)
        label = new JLabel();
        label.addMouseMotionListener(l);
        JPanel panel = new JPanel(new GridBagLayout());
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.insets = new Insets(10,10,10,10);
        panel.add(label, gbc);
        return panel;
    private JPanel getUIPanel(final Frame f)
        // row 1
        red = new JLabel(" ");
        green = new JLabel(" ");
        blue = new JLabel(" ");
        gray = new JLabel(" ");
        Dimension d = red.getPreferredSize();
        d.width = 45;
        GridBagLayout gridbag = new GridBagLayout();
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.insets = new Insets(2,2,2,2);
        gbc.weightx = 1.0;
        JPanel row1 = new JPanel(gridbag);
        addComponents(new JLabel("r:"),    red,   row1, gbc, d);
        addComponents(new JLabel("g:"),    green, row1, gbc, d);
        addComponents(new JLabel("b:"),    blue, row1, gbc, d);
        addComponents(new JLabel("gray:"), gray, row1, gbc, d);
        // row 2
        JButton open = new JButton("open");
        open.addActionListener(new ActionListener()
            JFileChooser fileChooser = new JFileChooser("images");
            public void actionPerformed(ActionEvent e)
                if(fileChooser.showOpenDialog(f) == JFileChooser.APPROVE_OPTION)
                    File file = fileChooser.getSelectedFile();
                    try
                        image = ImageIO.read(file);
                    catch(IOException ioe)
                        System.out.printf("read error: " + ioe.getMessage());
                    // make a gray image to read pixels from
                    grayImage = new BufferedImage(image.getWidth(),
                                                  image.getHeight(),
                                                  BufferedImage.TYPE_BYTE_GRAY);
                    Graphics2D g2 = grayImage.createGraphics();
                    g2.drawRenderedImage(image, null);
                    g2.dispose();
                    // update gui
                    label.setIcon(new ImageIcon(image));
                    revalidate();
                    repaint();
        JPanel row2 = new JPanel();
        row2.add(open);
        JPanel panel = new JPanel(gridbag);
        gbc.insets = new Insets(0,0,0,0);
        gbc.gridwidth = GridBagConstraints.REMAINDER;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        panel.add(row1, gbc);
        panel.add(row2, gbc);
        return panel;
    private void addComponents(Component c1, Component c2, Container c,
                               GridBagConstraints gbc, Dimension d)
        gbc.anchor = GridBagConstraints.EAST;
        c.add(c1, gbc);
        c2.setPreferredSize(d);
        gbc.anchor = GridBagConstraints.WEST;
        c.add(c2, gbc);
    public static void main(String[] args)
        GrayReader grayReader = new GrayReader();
        PixelRanger ranger = new PixelRanger(grayReader);
        JPanel imagePanel = grayReader.getImagePanel(ranger);
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(new JScrollPane(imagePanel));
        f.getContentPane().add(grayReader.getUIPanel(f), "Last");
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
class PixelRanger extends MouseMotionAdapter
    GrayReader grayReader;
    public PixelRanger(GrayReader gr)
        grayReader = gr;
    public void mouseMoved(MouseEvent e)
        grayReader.showPixel(e.getPoint());
}

Reading grayscale values from saved image

Hi,
I've written several methods that crop, convert to grayscale, histogram equalise and then resize a colour jpeg image for preparing sets of images for a face detection neural network. The next thing I want to do is to write a method that allows me to read that saved grayscale images pixel values back as singular grayscale values from the RGB values that were used to save the jpeg. I used this code to create the 2D array of grayscale pixel values
      for (int i = 0; i < imageWidth; i++)
            for (int j=0; j <imageHeight; j++)
                grayRGB[i][j] = (rgb[i][j] & 0xff000000) | (eqGray[i][j]<<16) | (eqGray[i][j]<<8) | (eqGray[i][j]);
                img.setRGB(i, j, grayRGB[i][j]);
            }and then used this code to resize the image:
        BufferedImage resized = new BufferedImage(20,20,1);
        Graphics2D g = resized.createGraphics();
        g.drawImage(img, 0, 0, 20, 20, null);
        g.dispose();my class gets the RGB values on instantiation as follows:
        //get RGB pixel values for image loaded
        for (int i = 0; i < imageWidth; i++)
            for (int j=0; j <imageHeight; j++)
                rgb[i][j]= inputImage.getRGB(i,j);
                //perform bitwise shift rgb information values to obtain appropriate values for each colour pixel
                r[i][j]= (rgb[i][j] >> 16) &0xff;
                g[i][j]= (rgb[i][j] >> 8) &0xff;
                b[i][j]= (rgb[i][j]) &0xff;
            }Is there a way to get the grayscale values directly from an image that is already converted to grayscale without having to perform the grayscale conversion method again, perhaps using a similar bitwise shift?
Thanks
Nick

answering this myself for those lost souls like i was a while ago:
the answer is very simple when you get to know it :) : use a signed type for your image. this can be achieved by using the Format Operator (javax.media.jai.operator.FormatDescriptor). an example as follows :
        BufferedImage bufferedImage= someimage...
        ParameterBlock pb = new ParameterBlock();
        pb.addSource(bufferedImage);
        pb.add(DataBuffer.TYPE_SHORT);
        RenderedImage formattedImage =
                JAI.create("format", pb, null);
// you may use as well TYPE_DOUBLE or TYPE_FLOATimage could be of any type such as PlanarImage, BufferedImage, RenderedImage etc..
then all you need to do is read your pixel values by using an iterator such as RectIter or RandomIter to access pixel values etc..
San

How to store Image data in table created using se11?

Please Help me I am Working on a project there i have a requirement of saving image in database table
along with All other information.
with Regards
laxmikant soni

Hello Laxmikant,
You can use SE78 to store the file and the data will be stored in STXBITMAPS table.
To put it in MIME repository refer to the below links.
FM for uploading Image to SAP
Dynamic Use of Mime in component
Regards,
Thanga

Saving & populating images in apex

hi
I want to save & retrieve employee photoes in database using apex. can anyone help me.
vijay

Hi Vijay,
Inside your workspace do you have sample application-> Run it->Go to Tab-> product-> Click Create Product-> Form shows input field with browse button-> Edit page to see the code to implement saving & populating images in apex.
This is table based storage inside apex.
If you want to store inside apex for your designing then go to shared component -> image-> create new image uploading-> Access from your page will be like the below.
<img src=#APP_IMAGES#temp.jpg>
This link also help.
http://download.oracle.com/docs/cd/B31036_01/doc/appdev.22/b28839/up_dn_files.htm
Thanks,
Loga
Edited by: Logaa on Sep 15, 2010 12:14 AM

Not saving the data in two tables

Hello,
its my production problem, i have an update form where you can update the records and these
records will sit in the temp tables until the final approval from the supervisor.
In this update form i have two table where i am saving the data one is dup_emp to save the
officer data and another is the dup_address to save the officer where he worked data.
in this form address form is pop up screen where you can update and gets back to the original
form where you can see all the other fields. my problem is if a user hit the cancel button on
address form example the user doesnt want to update any information on that screen so user
cancel that screen, and comes to the other screen where the user makes the changes to the
appropriate fields and hits the SAVE button. in this case its saving only to the dup_emp table
data not the address data from the address form to dup_address table for the same record.
if the user cancels in both the screens cancel button it should delete the record from both the
tables but cancel in form and saves in another form it should save the record in both the
tables.
here is my code from both cancel buttons from both the forms.
this is code is from address form cancel button.
delete from dup_address
where address_id=:address_id
and parent_table_name='emp';
commit;
CLEAR_BLOCK;
go_block('DUP_EMP');
This code is from dup form of the cancel button
declare
temp_address_id varchar2 (12);
begin
delete from dup_emp
where secondemp_id =:dup_emp.secondemp_id;
delete from dup_address
where parent_t_id=:global.secondemp
and parent_table_name='emp';
commit;
clear_block;
go_block('secondaryemp');
END;

Hi,
As Aravind mentioned, it's nothing related to workflow. You have to find a BADI in tcode PA30 that could be used after the infotype is updated. So, you can use FM SAVE_TEXT.
Regards,

Help! Saving an image to stream and recreating it on client over network

Hi,
I have an application that uses JDK 1.1.8. I am trying to capture the UI screens of this application over network to a client (another Java app running on a PC). The client uses JDK 1.3.0. As AWT image is not serializable, I got code that converts UI screens to int[] and persist to client socket as objectoutputstream.writeObject and read the data on client side using ObjectInputStream.readObject() api. Then I am converting the int[] to an Image. Then saving the image as JPEG file using JPEG encoder codec of JDK 1.3.0.
I found the image in black and white even though the UI screens are in color. I have the code below. I am sure JPEG encoder part is not doing that. I am missing something when recreating an image. Could be colormodel or the way I create an image on the client side. I am testing this code on a Win XP box with both server and client running on the same machine. In real scenario, the UI runs on an embedded system with pSOS with pretty limited flash space. I am giving below my code.
I appreciate any help or pointers.
Thanks
Puri
     public static String getImageDataHeader(Image img, String sImageName)
         final String HEADER = "{0} {1}x{2} {3}";
         String params[] = {sImageName,
                            String.valueOf(img.getWidth(null)),
                            String.valueOf(img.getHeight(null)),
                            System.getProperty("os.name")
         return MessageFormat.format(HEADER, params);
     public static int[] convertImageToIntArray(Image img)
         if (img == null)
             return null;
        int imgResult[] = null;
        try
            int nImgWidth = img.getWidth(null);
            int nImgHeight = img.getHeight(null);
            if (nImgWidth < 0 || nImgHeight < 0)
                Trace.traceError("Image is not ready");
                return null;
            Trace.traceInfo("Image size: " + nImgWidth + "x" + nImgHeight);
            imgResult = new int[nImgWidth*nImgHeight];
            PixelGrabber grabber = new PixelGrabber(img, 0, 0, nImgWidth, nImgHeight, imgResult, 0, nImgWidth);
            grabber.grabPixels();
            ColorModel model = grabber.getColorModel();
            if (null != model)
                Trace.traceInfo("Color model is " + model);
                int nRMask, nGMask, nBMask, nAMask;
                nRMask = model.getRed(0xFFFFFFFF);
                nGMask = model.getRed(0xFFFFFFFF);
                nBMask = model.getRed(0xFFFFFFFF);
                nAMask = model.getRed(0xFFFFFFFF);
                Trace.traceInfo("The Red mask: " + Integer.toHexString(nRMask) + ", Green mask: " +
                                Integer.toHexString(nGMask) + ", Blue mask: " +
                                Integer.toHexString(nBMask) + ", Alpha mask: " +
                                Integer.toHexString(nAMask));
            if ((grabber.getStatus() & ImageObserver.ABORT) != 0)
                Trace.traceError("Unable to grab pixels from the image");
                imgResult = null;
        catch(Throwable error)
            error.printStackTrace();
        return imgResult;
     public static Image convertIntArrayToImage(Component comp, int imgData[], int nWidth, int nHeight)
         if (imgData == null || imgData.length <= 0 || nWidth <= 0 || nHeight <= 0)
             return null;
        //ColorModel cm = new DirectColorModel(32, 0xFF0000, 0xFF00, 0xFF, 0xFF000000);
        ColorModel cm = ColorModel.getRGBdefault();
        MemoryImageSource imgSource = new MemoryImageSource(nWidth, nHeight, cm, imgData, 0, nWidth);
        //MemoryImageSource imgSource = new MemoryImageSource(nWidth, nHeight, imgData, 0, nWidth);
        Image imgDummy = Toolkit.getDefaultToolkit().createImage(imgSource);
        Image imgResult = comp.createImage(nWidth, nHeight);
        Graphics gc = imgResult.getGraphics();
        if (null != gc)
            gc.drawImage(imgDummy, 0, 0, nWidth, nHeight, null);
            gc.dispose();
            gc = null;
         return imgResult;
     public static boolean saveImageToStream(OutputStream out, Image img, String sImageName)
         boolean bResult = true;
         try
             ObjectOutputStream objOut = new ObjectOutputStream(out);
            int imageData[] = convertImageToIntArray(img);
            if (null != imageData)
                // Now that our image is ready, write it to server
                String sHeader = getImageDataHeader(img, sImageName);
                objOut.writeObject(sHeader);
                objOut.writeObject(imageData);
                imageData = null;
             else
                 bResult = false;
            objOut.flush();
         catch(IOException error)
             error.printStackTrace();
             bResult = false;
         return bResult;
     public static Image readImageFromStream(InputStream in, Component comp, StringBuffer sbImageName)
         Image imgResult = null;
         try
             ObjectInputStream objIn = new ObjectInputStream(in);
             Object objData;
             objData = objIn.readObject();
             String sImageName, sSource;
             int nWidth, nHeight;
             if (objData instanceof String)
                 String sData = (String) objData;
                 int nIndex = sData.indexOf(' ');
                 sImageName = sData.substring(0, nIndex);
                 sData = sData.substring(nIndex+1);
                 nIndex = sData.indexOf('x');
                 nWidth = Math.atoi(sData.substring(0, nIndex));
                 sData = sData.substring(nIndex+1);
                 nIndex = sData.indexOf(' ');
                 nHeight = Math.atoi(sData.substring(0, nIndex));
                 sSource = sData.substring(nIndex+1);
                 Trace.traceInfo("Name: " + sImageName + ", Width: " + nWidth + ", Height: " + nHeight + ", Source: " + sSource);
                 objData = objIn.readObject();
                 if (objData instanceof int[])
                     int imgData[] = (int[]) objData;
                     imgResult = convertIntArrayToImage(comp, imgData, nWidth, nHeight);
                     sbImageName.setLength(0);
                     sbImageName.append(sImageName);
        catch(Exception error)
            error.printStackTrace();
         return imgResult;
     }

While testing more, I found that the client side is generating color UI screens if I use JDK 1.3 JVM for running the server (i.e the side that generates the img) without changing single line of code. But if I use JDK 1.1.8 JVM for the server, the client side is generating black and white versions (aka gray toned) of UI screens. So I added code to save int array that I got from PixelGrabber to a text file with 8 ints for each line in hex format. Generated these files on server side with JVM 1.1.8 and JVM 1.3. What I found is that the 1.1.8 pixel grabber is setting R,G,B components to same value where as 1.3 version is setting them to different values thus resulting in colored UI screens. I don't know why.

Background image in a table not in the document

hello forum, i would like to put a background image in a table so that I am able to put things on top of the image and so it moves with the table. I can only figure out how to do it in the page properties so that it is static on the page. Can anyone please tell me if what I am trying to do is possible? thank you in advance. Jim.

Hi John,
thanks for your hint, now I've got it. And so I was able to integrate/to play with Gramps hint in some variations too.Hans-G.

How can I recover BFILE images from a table?

I`m a Spanish student, so excuse me for my poor english.
I have used LOB objects to insert images into some tables of a DataBase. However, I have tried to recover the inserted images to put those into a Developer 6 Form, and I haven4t done it.
?Have I need an specific procedure?
?Is There some option in Developer 6 to do it easily?
Please, help me.

If you have access to a PC I believe - if memory serves me correctly - that the free download SubRip can rip the highlight overlays back to graphics files from the Menu VOBs
There is a subtitle ripping program for Mac - D-Subtitler - which may do the same job but I have never found it to be as good at ripping stuff as SubRip.
I guess the only other way is if they are not too complex is to recreate the overlays in Photoshop using frame grabs for reference?

Inserting Images in a Table

When I insert images in a table and align them right, for
example, there are still a few pixels between the edge of the table
and the image on the top and right.
How do I make an image go to the absolute edge of a table?
Thanks,
Chris

By managing the table's default cellpadding and cellspacing.
Are you
setting them to zero?
If that's not happening then we would need to see your code.
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================
"OxfordFishSalon" <[email protected]> wrote
in message
news:fulior$9i1$[email protected]..
> When I insert images in a table and align them right,
for example, there
> are
> still a few pixels between the edge of the table and the
image on the top
> and
> right.
>
> How do I make an image go to the absolute edge of a
table?
>
> Thanks,
> Chris
>

How can we show image in per_images table in our OAF page?

Hi All,
Can any one suggest me how to show the image from per_images table on to OAF page?
Ihe image is stored as binary value in the table..
<br><br> Thanks in advance. <br>
Soujanya

Go through this thread:
Re: Displaying an Image stored in the Database as BLOB on OA Fwk Page
--Mukul

I want to store an image in R3 table and retrive it

Hi,
i want to store an image in R3 table and retrive it from my function module.
Can any one tell me what is the step by step procedure to do that.
I am new to ABAP.
Regards,
H.V.Swathi

Dear Swethi,
You can move images to SAP using SE78. then u can use them where ever u you require them.
SE78->GRAPHICS->BMAP here give ur image name and click on save
Rgds,
Kiran
Edited by: Kiran on Jun 11, 2009 7:15 AM

Displaying image from database table.

Hi All,
   I am very new to Web Dynpro ABAP.
I am developing an application to display an image in "Image" UI Element.
For this I have one table consisting of fields image id, image data and image name. here image id is primary key field.
Now i want to display an image from that table in "Image" UI Element. For this i am using "Filedown load" UI element.
But by using filedownload ui element i can diaplay image in another new page.
But my requirement is to display image in the same web page without creating a new one.
(I want to display the image in "Image" UI element without storing that image in MIME objects.)
Can anyone help me.
Thanks in Advance!
Regards,
Sreelakshmi.

What you describe is completely possible. Since you have the image data (XSTRING) in the context you have everything you need. You don't need to store the content into the MIME Repository, but you do need to get it somewhere where it has an externally accessible URL. Remember you need to supply image UI element with a URL. This URL is processed on the client side by the web browser. Therefore just giving it a path to the context won't work as that isn't externally accessible.
I would suggest instead that you place the image content into the ICM cache temporarily. This lets you basically generate a temporary URL for the image that can be used by the Image UI element.
Here is some example code that pushes images into the ICM Cache:
****Create the cached response object that we will insert our content into
DATA: cached_response TYPE REF TO if_http_response.
CREATE OBJECT cached_response
    TYPE
      cl_http_response
    EXPORTING
      add_c_msg        = 1.
   try. " ignore, if compression can not be switched on
      call method cached_response->set_compression
        exporting
          options = cached_response->co_compress_based_on_mime_type
        exceptions
          others = 1.
    catch cx_root.
endtry.
****set the data and the headers
DATA: l_app_type TYPE string.
DATA: l_xstring TYPE xstring.
      cached_response->set_data( me->gx_content ).
      l_app_type = me->gx_mimetype
cached_response->set_header_field( name = if_http_header_fields=>content_type
                                     value = l_app_type ).
****Set the Response Status
cached_response->set_status( code = 200 reason = 'OK' ).
****Set the Cache Timeout - 60 seconds - we only need this in the cache
****long enough to build the page and allow the Image on the Client to request it.
cached_response->server_cache_expire_rel( expires_rel = I_CACHE_TIMEOUT ).
****Create a unique URL for the object
DATA: guid TYPE guid_32.
CALL FUNCTION 'GUID_CREATE'
    IMPORTING
      ev_guid_32 = guid.
CONCATENATE i_path '/' guid '.' i_format INTO r_url.
****Cache the URL
cl_http_server=>server_cache_upload( url      = r_url
                                       response = cached_response ).

How to see all image types when saving an image without selecting "all files"every time

<blockquote>Locking duplicate thread.<br>
Please continue here: [[/questions/951766]]</blockquote>
Hallo, and thank you for reading this.
I am a person who saves a lot of images online and renames them in different folders in different names like B - 34 or G - 56. I have been working with firefox 10 for quite some time and it had a pretty handy bug (I guess) where I could save an image and firefox would just save the image in it's original type (JPEG,PNG etc) while "save as type" was empty.
It also always has shown all the image types in the folder where I save the images (except for GIF) and that helpes me quite a lot by saving me the trouble of selecting "all files" every time I save or going to the folder to rename every image.
Now this seems to be lacking in the newest firefox versions and my question is if I can set firefox to always show me all the image file types when saving an image, instead of only showing JPEG's when I try to save a JPEG.
Thank you for your time.

I suspect this is a Windows problem. I am surmising the FilePicker uses the Operating System or Desktop facilities. Does Windows 7 offer any other file categories like ''images'' ?
I do not normally use Windows 7, but may the option depend upon the directory being an indexed one, I ask after finding this thread ''Bring File types tab back'' [http://www.windows7taskforce.com/view/819]
This question is a duplicate of [/questions/951764]
Normally I would lock the duplicate question, but in this instance I will leave it open as it is unanswered and someone may give a better reply.

When saving an image in PS CS 6, and going back to Lightroom 5. The original image and the edited image are at the end of the line up.

I'm using a Mac, Lightroom 5 and Photoshop CS 6. I've started having an issue with the line up in Lightroom 5 after saving an image from PS CS 6. For some reason when I save the edited image form CS 6 it's taking the edited image and the original image and putting it at the end of the line up in Lightroom. If I take the edited image and move it to the right of the original it will put both of them back in the line up where they should be. How do I fix this. I've been looking in the menu for some kind of setting with no luck.

Change the sort order. View->Sort

Saving an image as a table of grayscale values?

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