Problem in using PNG files....

Hi everybody...
Whenever i use ImageIo.read(filename) function to read a PNG file....it returns a bufferedImage with Type = 0....
and i cannot use this type of image to perform convolution operations....
how can i solve this??....
Another problem is that whenever i save it using the write method....the size of the new file is way too large than original image.
( ex - 250 kb(source image) - 1.5Mb(saved image))
how can i solve this??
plzz someone help me...
itz urgent!!

I'm making educated guesses here but I suspect you may be loading a palettised (ie <16M color) file and convolution probably requires true color - you can convert by creating a new image and rendering into it.
As for writing out, you can adjust the write settings by tailoring the relevant ImageWriteParams... there should be plenty of info around if you Google.

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Hi Jun,
Can i contribute a little for ur 2nd problem.
This error is coz, If u are using a filter against a File "data store" u can't test it, only against RDBMS query will be tested at data store level.
Well, for using that filter and make sure its working, drag and drop the source file in the interface (u can get the filter) and make it to execute on STAGING.
Thanks,
Guru

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I just purchased Elements to do a very specific task which I can’t do in Aperture. I am a former photoshopper (V.5) and excited to be back.
I am doing a book/scrapbook and the majority of my text will be my own handwriting. I use white paper and black ink and I scan in at the highest settings. My goal is to create my handwriting on a transparent background so I can place it in my book as I choose. For this specific project (which is very large in scope) I wanted to keep my image/file management within Aperture.
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@roshlioto This is a windows issue NOT Photoshops. So wrong place on the Internet.
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According to Apple Technical Note TN2065:
"when you use just a command name instead of a complete path, the shell uses a list of directories (known as your PATH) to try and find the complete path to the command. For security and portability reasons, do shell script ignores the configuration files that an interactive shell would read"
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http://www.imagemagick.org/script/command-line-options.php#alpha
http://www.imagemagick.org/Usage/masking/#remove
http://www.imagemagick.org/index.php
http://www.imagemagick.org/script/command-line-tools.php
http://www.imagemagick.org/script/command-line-options.php
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Please describe the process in more detail (including OS etc.).
Boilerplate-text:
Are Photoshop and OS fully updated and have you performed the usual trouble-shooting routines (trashing prefs by keeping command-alt-shift/ctrl-alt-shift pressed while starting Photoshop after making sure all customized presets like Actions, Patterns, Brushes etc. have been saved and making a note of the Preferences you’ve changed, 3rd party plug-ins deactivation, system maintenance, cleaning caches, font validation, etc.)?

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Stand alone Program.png ‏350 KB
With exe.png ‏87 KB

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Problem in using PNG files....

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