Reading an image VB.net [closed] - vb.net

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Is it possible to read a text on an image?
Why yes and why not?
My client wants me to make this but I think it's impossible, if not impossible then it'll be very hard to make.. I was trying to explain it to him but it seems like he really wants to push it.
:/
EDIT: I don't understand why you downvoted this I was just asking a yes or no question here. :)) but well it's ok I want to hear what do you guys think if this is possible in vb.net

Use something like PDFSharp to get the images, then perform OCR on them with for ex. Tersseract.
Problem is where should that text be used? In the PDF? If yes it might be possible to include a textfield above the image with the text in the PDF, using PDFSharp too.

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How to show large quantity of hex text in Cocoa? [closed]

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I want to make a Mac app to view and edit several GB sized binary files.
How do I start off? :-(
I thought I should begin with a simple scrolling hex viewer, but stuck already.
I think NSTextView is not the way to go. Because I only need to draw 255 kind of two character pair over and over. Also need to manage huge text data.
1) can I use NSLayoutManager drawGlyphsForGlyphRange method?
2) is it possible with NSTextView and clever text management?
3) or something else?
It will be greatly helpful if I could consult samples or demos.
http://github.com/ridiculousfish/HexFiend/
Hex Fiend is an open source hex editor that can edit huge files (the website says it has been tested on a 118GB file).

Why photoshop SDK sample code don‘t work in my Mac-OS10.7? [closed]

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I used the photoshop SDK CS5. And complied the sample code hidden in the filter folder with my x-code. And I get the target file 'Hidden.plugin' . But it seems no use, when I puts it to the photoshop plug-ins plugin folder.The version of my photoshop is also CS5. Anyone can tell me why?
Problem solved with the help of others in other website.
http://forums.adobe.com/message/5802597#5802597

Plotting function with matplotlib [closed]

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please how can i plot the Rosenbrock function to get the image above :here
To get the 3d plot at the top, click on the image in the WP article to get the image page. Check the bottom, the person who created the image was good enough to include the python script that created it in the comment section. It requires matplotlib (of course). As for the other images, it's hard to tell what's going on mathematically and there's no source given so I doubt anyone but the people who created them could reproduce them accurately.

How to debug in sql(Oracle) [closed]

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I am writing a long SQL query and I'm getting incorrect output fields. How do I debug this query?
There is no right answer to this question. I think deep down you know that.
When I have something complicated break it down to uncomplicated pieces. Once you are comfortable with these pieces then one by one start to put this complicated thing back together again. The main point is keep breaking complicated things into more and more simple things. I am not embarrassed to say I have broken things down to select sysdate from dual and then start to build back up!
Good Luck.

convert PDF to HTM [closed]

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I want to convert my PDF files into HTML(not looking for any software though). I dont have any idea. How to read the PDF then taking care of font size, styling, line spacing, character spacing, How to generate HTML?
and then How I can take care of images also ?
I wrote an article on this issue at (http://www.jpedal.org/PDFblog/2010/09/why-pdf-to-html-conversion-does-not-work-very-well/) and the blog also contains lots of general articles on PDF.