How to display large image in JAI

dear all,
could anyone tell me how do i display an image which is around
5000x5000 pixels in JAI. I try to use BufferImage to store the image
but JVM throws" out of memory " error while program is running.
thanx a lot!

Hi,
do you want to work with the image or do you only want to show it into a container?
you can increment the JVM Memory available space. Or you can split the image into smaller BufferedImage, draw it and call the gc...

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How to display large image using JAI

dear all,
could anyone tell me how do i display an image which is around
5000x5000 pixels in JAI. I try to use BufferImage to store the image
but JVM throws" out of memory " error while program is running.
thanx a lot!

just a rough estimate, but a 5000x5000 image would require at least 24MB assuming each byte is one pixal, I believe they are 4 bytes per pixel in RBGA format. (5000*5000) = 25,000,000 pixals /1024/1024 = 23.8MB for 1 byte pixals, *4 for 4 byte = 95.3MB. I'm pretty sure that this is how it stores it. Maybe I'm wrong but it certainly explains the situation. assuming you have at least 256MB ramm, run java with -Xmx200M and see what happens.
java -Xmx200M app
or if you have more ramm, like 512, use 450 or 500.

How to dispaly large images?

Hi!
I have a simple problem, hope somebody could help me!
I would like to display images from a LONG RAW type column of an Oracle database (Oracle8i Enterprise Edition Release 8.1.6.0.0) in a BC4J application. I use JDEV 9.0.3.
The wizard generated entity object's attribute type for the image field is raw, i could not find the LONG RAW type in the java types. The maximun size of the raw type is 2000 bytes, so my app can not handle and display large images. How could i solve this problem? Pls help me!
I have read the otn forum tips, but they did not help me :((
Thanx
Bence

You may try mapping your column to BlobDomain!
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How to display a image in webdynpro view using a bytearry

Hi Frndz..
How to display an image in a view using webdynpro java ..i have bytearry object in context ..like
*byte[] img = wdContext.nodeYywwwdataImport_Input().nodeOutput().nodeOutMime().currentOutMimeElement().getLine();*_
by using this i need to show image in view..
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Rajesh

Hi,
byte[] img = wdContext.nodeYywwwdata_Import_Input().nodeOutput().nodeOutMime().currentOutMimeElement().getLine();
use this code to create resource and you need to set this value to the context created to display the image suppose in the image UI and set the source property with this attribute:-
IWDResource res=WDResourceFactory.createCachedResource(b,"MyImage",WDWebResourceType.JPG_IMAGE);
IPrivateAppView.IVn_ImageTabElement imageEle=wdContext.createVn_ImageTabElement();
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Good Day!
I would like to ask some help from you guys with my problem on how to display an image on my form. I would like to display my uploaded image on my form but instead of an image, the get_blob_file is showing. By the way, I'm using Apex 4.1
I downloaded the Order Entry Sample Application and followed the Page 6, the Product Details. I even made snapshots of each details from Page Rendering to Page Processing in order not to miss a thing.
At the moment, I was able to upload or store the image on my created Oracle table and also able to retrieve it on the Download Link Text with Content Disposition value of Inline, provided by APEX Settings. If I invoke the Download link beside the file browser, a page with the image will be shown, below is the address:
http://127.0.0.1:8080/apex/apex_util.get_blob_file?a=200&s=339877802936975&p=230&d=7107921433296839&i=7107601420296838&p_pk1=54&p_pk2=&p_ck=7D6512D967336C4B94258EEA3CDF1BE6&p_content_disposition=inline
However, instead of showing the image on a region, below is the one showing on my Form:
<img src="apex_util.get_blob_file?a=200&s=339877802936975&p=230&d=7107921433296839&i=7107601420296838&p_pk1=54&p_pk2=&p_ck=7D6512D967336C4B94258EEA3CDF1BE6" />
As you can see the parameter values are the same but I know I missed something that's why I'm here :)
I would highly appreciate all the help you can provide and many thanks in advance.
I tried to change gear by making an html region of type PL/SQL (anonymous block) and a procedure but still no image :(
Below are the scripts.
declare
cursor cur is
select *
from wsemployee
where empid = :P230_EMPID;
begin
for rec in cur
loop
IF rec.mime_type is not null or rec.mime_type != '' THEN
htp.p( '<img src="my_image_display?p_image_id='||NVL(rec.empid,0)||'" height="'||100||'"/>' );
else
htp.p( 'No Image ');
END IF;
htp.p( ' ');
end loop;
end;
PROCEDURE
create or replace PROCEDURE my_image_display( p_image_id IN NUMBER)
AS
l_mime VARCHAR2 (255);
l_length NUMBER;
l_file_name VARCHAR2 (2000);
lob_loc BLOB;
BEGIN
SELECT MIME_TYPE, PHOTO_BLOB_CONTENT, PHOTO_FILENAME,DBMS_LOB.GETLENGTH(photo_blob_content)
INTO l_mime,lob_loc,l_file_name,l_length
FROM wsemployee
WHERE empid = p_image_id;
-- set up HTTP header
-- use an NVL around the mime type and
-- if it is a null set it to application/octect
-- application/octect may launch a download window from windows
owa_util.mime_header( nvl(l_mime,'application/octet'), FALSE );
-- set the size so the browser knows how much to download
htp.p('Content-length: ' || l_length);
-- the filename will be used by the browser if the users does a save as
htp.p('Content-Disposition: attachment; filename="'||replace(replace(substr(l_file_name,instr(l_file_name,'/')+1),chr(10),null),chr(13),null)|| '"');
-- close the headers
owa_util.http_header_close;
-- download the BLOB
wpg_docload.download_file( Lob_loc );
END my_image_display;
Edited by: user13831927 on Dec 22, 2012 3:24 PM

Hi Ying,
you can add a UDF to the table spp2 with a programm
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How to view large images ?

i just updated my phone c601 from symbian anna to belle..may i know how to view large images in the nokia internet browser..i cant change it

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How to display an Image which is on Panel behind JScrollPane - Please Help

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Hi Friends
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i trying using url iview url as \document\testfolder\abc.jpg as url for the iview.
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Mukesh

Hi Mukesh,
I think this may work,
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Hello,
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-- Mikko

about image resizing, it is very difficult issue.
I did this code for my company in 2 whole weeks. and sure I can not post it.
pluse this code was only for Jpeg files.
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Hi All,
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Silvia

Hallo John,
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Further you have to create a String for the URL. Implement like as follows:
IWDCachedWebResource cachedResource = null;
String imgUrl = null;
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catch (WDURLException e)
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I hope it will help you.
Regards,
Silvia

Displaying Large Images and Out of Memory Error

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thanks

Hiya.
I can't say I know how to save Java from large images, but you can up the memory allocated to the JVM:
java -Xmx120M ...
will give 120M to the JVM (max). There is an -Xms also which gives the initial allowed space.
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Paulj.

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Ray Dunakin wrote:
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Yvan Koenig discovered with iWork '08 that you can span images across pages in a Numbers document as a substitute. Select & delete any tables & then treat the Numbers document as a draw document. You shouldn't need to add pages like in AppleWorks as Numbers adds them as needed to display all of the content.

Displaying large images

On blog or news item pages etc. it would be common to display
an image as no more than a certain width, regardless of the actual
image size, simply for fast loading and consistent visual
presentation. However, I would like users to be able to see the
image full size if required.
The obvious approaches are when clicking on the image, to
either show it full size in the current browser window or to create
a new window to show it, probably using JavaScript to open a window
the same size as the image.
Both have their pros and cons and the other issue is that it
is always annoying to click on an image only to discover that the
original was no bigger anyway!
Does anyone have any thoughts on how best to handle images?
Thanks.

> On blog or news item pages etc. it would be common to
display an image as
> no
> more than a certain width, regardless of the actual
image size
This is mistaken. A large image will fetch as its native size
regardless of
how you display it on the page.
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
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==================
"UsuallyConfused" <[email protected]> wrote
in message
news:f7i90a$lns$[email protected]..
> On blog or news item pages etc. it would be common to
display an image as
> no
> more than a certain width, regardless of the actual
image size, simply for
> fast
> loading and consistent visual presentation. However, I
would like users to
> be
> able to see the image full size if required.
>
> The obvious approaches are when clicking on the image,
to either show it
> full
> size in the current browser window or to create a new
window to show it,
> probably using JavaScript to open a window the same size
as the image.
>
> Both have their pros and cons and the other issue is
that it is always
> annoying to click on an image only to discover that the
original was no
> bigger
> anyway!
>
> Does anyone have any thoughts on how best to handle
images? Thanks.
>

How to display large image in JAI

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