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Sequence and merge jpeg images using Python?

hi, im doing a project as part of academic programme.Im doing this in linux platform.here i wanted to create a application which retrieve some information from some pdf files .for eg i have pdfs of subject2,subject1,in both the whole pdf is divided in to 4 modules and i want to get the data of module 1 from pdf..for this purpose my tuto...

Images with unknown content: Dangerous for a browser?

Let's say I allow users to link to any images they like. The link would be checked for syntactical correctness, escaping etc., and then inserted in an <img src="..."/> tag. Are there any known security vulnerabilities, e.g. by someone linking to "evil.example.com/evil.jpg", and evil.jpg contains some code that will be executed due to a ...

Is it possible to read path in JPEG image with python?

If you Save as > jpg in Adobe Photoshop a path (selection) is stored in the file. Is it possible to read that path in python, for example to create a composition with PIL? EDIT Imagemagick seems to help, example ...

Can i add watermark on a series of pictures?

I have a strong amount of pictures, which i would like to "protect" by adding watermark on them. Is there any way of adding watermark by using vb.net or C# ? ...

Looking for a managed image parser library (JPEG, BMP, PNG, GIF)

I am writing a discussion board software that will have "avatar" images for the users. I want to resize any picture that gets uploaded to a reasonable size. I could easily do that with System.Drawing but that is relying on GDI+ which has hat security problems before. The problem is that the images are untrusted. So I thought of using a f...

In Java, retrieve a JPEG from a URL and convert it to binary or hexadecimal form suitable for embedding in an RTF document

I'm trying to write a simple RTF document pretty much from scratch in Java, and I'm trying to embed JPEGs in the document. Here's an example of a JPEG (a 2x2-pixel JPEG consisting of three white pixels and a black pixel in the upper left, if you're curious) embedded in an RTF document (generated by WordPad, which converted the JPEG to WM...

jpg file parsing to extract info/text

I have an idea for a project that I wanted some advice/pointers on. I am planning to write an application to automatically parse expense receipts in JPG format and automatically extract the amount and also categorize using some learning algorithm. Is this at all doable? What libraries are available to parse jpg files to extract textual...

How to write a huge JPEG that exceeds the physical RAM using Delphi ?

Hi all, Here is the problem. I have a large set of 512x512 pixels JPEG tiles as regular jpg files. I have written a piece of software that does a bunch of things and does need to stitch all those files into a single huge JPEG at the end. First of all, I do NOT wish to use ImageMagick to do this, but perform it inside my software ! In...

Load entire image and use CATiledLayer

Hello, I'm not sure I did understand that very well in the Apple doc. I'm considering using CATiledLayer to display a JPEG image. However, I only have an entire JPEG file at my disposal and no small tiles. Is it still possible to use a CATiledLayer and let it "tile" the JPEG? Thanks! ...

Iphone JPEG datastream contains no image using NSURLConnection

hello - I was previously downloading images for my app by using dataWithContentsOfURL to download a jpg then writeToFile to save it. I recent;y started using an NSURLConnetion to do the same, but now I am getting the follwoing errors and a crash: Corrupt JPEG data: 87 extraneous bytes JPEG datastream contains no image I know these ...

How do I create a WPF Image control that sources its data from a JPEG I've read into memory?

For the images in my application, I have been setting the source property of my image to a JPEG file on disk but, as part of my next iteration, I want to test keeping them in memory for speed. How do I tell the WPF Image control to get its information from an in-memory source rather than from a file? ...

WPF Images not rendering from in-memory sources.

I have a data class in my application which maintains a collection of byte arrays representing JPEG images. It's defined as: private ArrayList FrameList = new ArrayList(); I'm having some troubles with my Image object rendering a blank page (and taking its sweet time to do it as well). When I insert a blank image with a 2K in-memory b...

How can I read and write JPEG data on a per-pixel basis?

The title pretty much explains my question. I would like to be able to read and write JPEG data on a per-pixel basis using C#. I'm thinking something along the lines of CreateJPEG(x, y) which would set up a blank JPEG image in memory, and would give me a JPEG object, and then something like SetPixel(x, y, Color) and GetPixel(x, y) the f...

Transparent Images

Does anyone know if IE now supports transparent png's etc...? Does chrome as well? ...

jpeg to png conversion

hi, I am working on images in iPhone. There are lots of jpeg images which range from 35kb to 50kb. I may need to transfer this over internet which comes around 6 mb. I tried to change a 35kb jpeg image to png. The actual size got increase jpeg was 56.1kb and png is 576 kb. I used mspaint to change the format. jpeg to png should actually...

What is the maximum size of JPEG metadata?

Is there a theoretical maximum to the amount of metadata (EXIF, etc) that can be incorporated in a JPEG file? I'd like to allocate a buffer that is assured to be sufficient to hold the metadata for any JPEG image without having to parse it myself. ...

Ruby: convert list of jpegs to flv file

Hi, I need to write a Ruby script that can take a collection of jpeg files and creat a slideshow of them in .flv format. the .flv file then needs to be stored into a database. Does anyone know what libraries/gems/I'm going to need to get this started? ...

How would I encode a binary file to JPG format?

I would like to be able to take a stream of 1's and 0's and convert it to a format that jpg can read, I.E. suppose I wrote a program and compiled and got an exe, then took and ran the 1's and 0's from the exe through said program, it would produce a .jpg. Any tips on what I need to do? I am hoping it's not as difficult as I'm suspecting ...

ffmpeg slide show with yellow block in picture

Hi, I've been creating a slideshow using ffmpeg with images from face facebook, flickr, etc. basic script is here: ffmpeg -loop_input -sameq -vframes 60 -intra -y -i pond.jpg the script works, however certain images have a centered yellow block covering a majority of the image. I've found this occurs more frequently with images I have...

Best way to convert Image Type to Image Type in embedded Java?

I'd like to convert (back and forth) the following - PS to TIFF - TIFF to PDF - PDF to TIFF - GIF to TIFF - JPEG to TIFF - TIFF (LZW) to TIFF (CITT G4) Where, if not specified, TIFF is CITT G4 encoding. Within embedded code of a Java app; any recommended solutions? ...