I'm attempting to convert a PDF to a JPEG using ImageMagick. The PDF: baby_aRCWTU.pdf The command: convert -density 260 -profile 'SWOP.icc' -profile 'sRGB.icm' 'baby_aRCWTU.pdf' 'baby_aRCWTU.jpg' The resulting JPEG: baby_aRCWTU.jpg As you can see, the text is rendered nicely, but the embedded image shows up as a green square. Any ide...
I'm looking for a library (or a cleverer solution) in C or C++ that would make an image file (PNG|jpeg) from LaTeX code. The use of packages is a prerequisite. For now I'm thinking of compiling a .tex file into a .dvi and using dvipng to get a .PNG. There's also the possibility of compiling a .tex file into a .ps file and then convert...
Does anybody have any tips on how to best, retrieve a jpeg/jpg from a block file/device which does not have standard ffd8 and ffd9 headers? I am able to retrive the files fine, but only those which are properly formatted. Though it seems many jpg files are not perfectly formatted with a ffd8 header and a ffd9 footer. ...
I need to be able to load a jpeg/png image from disk and show it in flex and send it to a server as a base64 encoded string. But once the image file is loaded, in my flash.display.LoaderInfo object, the bytes property (type of ByteArray) contains more byte than the file content. Example: image file size: 3089 flash.display.LoaderInfo.b...
I am working on an applet that interfaces with a signature pad. The signature pad API has a function that returns a BufferedImage (assume its called API_CALL_TO_RETURN_BUFFERED_IMAGE()). I can encode to jpeg and write this image to file just fine (Using FileOutputStream). However, instead of writing to the local disk, I need to upload...
I'm performing rotation while resizing a JPEG image using GDI+. If I use Image.RotateFlip(RotateFlipType) when saving a JPEG, it works great. When I pass in any of the Encoder.Transformation parameters, I get a "Parameter is not valid." ArgumentException. I've read that using the Encoder.Transformation parameters during the save proces...
I have an XML doucment in which there is an tag for image like this if there is an image then the tag would be as follows <thumbnail> <type>IMAGE JPG</type> <data> base64 data </data> </thumbnail> And if there is no image then <thumbnail/> I want to get the base64 encoded image using DOM parser and how to handle tags which don't...
Does someone know a plug-in that allows me to open JPEG files on my browser (Internet Explorer or Firefox) with zoom and rotation buttons? I have tried to find it but without succes : ( ...
Are there end-of-exif / end-of-xmp / end-of-iptc / start-of-data markers that I could use to get a checksum of just the data part of a jpg / jpeg (and other image formats)? ...
I want to get raw jpeg data - no metadata. I'm very confused looking at the jpeg "standards". How correct is my understanding of the marker "tree"? 0xFFD8 - Identifies the file as an image 0xFFE? - EXIF, JFIF, SPIFF, ICC, etc 0x???? - the length of the tag 0xFFD8 - Start of Image 0xFFE0 - should follow SOI as p...
Hi all, Using C# how would I watermark an jpeg image that I'm reading into a memory stream and saving to a byte array? using (MemoryStream imageStream = new MemoryStream()) { pbPreview.Image.Save(imageStream, ImageFormat.Jpeg); photoBytes = imageStream.ToArray(); } Thank you ...
Hi, I am trying to extract a range of pages from a multipage pdf file into individual jpegs using convert (Imagemagick). The extraction works fine. What I am stuck on is that if I want to extract page range 10-20, I still get out jpeg files with names page-0.jpeg to page-9.jpeg while I want them to be named page-10.jpeg to page-20.jpeg....
Hello. I'm sending jpegs to a web server via Http POST. I can access the bytes of each jpeg file that reaches the web server. Now I want do display these jpeg as they reach the web server, as a mjpeg video. How can I do it? Please help! Thanks ...
Does anyone know if any JPEG compression library that produces decent image quality has been ported to the iPhone? The built-in algorithm inside UIImageJPEGRepresentation produces huge files (compared to the quality), which makes uploading images from the phone over the network much slower than necessary. I can compress a JPG compressed ...
This is really a two part question, since I don't fully understand how these things work just yet: My situation: I'm writing a web app which lets the user upload an image. My app then resizes to something displayable (eg: 640x480-ish) and saves the file for use later. My questions: Given an arbitrary JPEG file, is it possible to tell...
I am using Java AWT for scaling a JPEG image, to create thumbnails. The code works fine when the image has a normal sampling factor ( 2x2,1x1,1x1 ) However, an image which has this sampling factor ( 1x1, 1x1, 1x1 ) creates problem when scaled. The colors get corrupted though the features are recognizable. The original and the thumbnail...
hi all, I need to read an image file in C/C++. It would be very great, if some one can post the code for me. I work on gray scale images and the images are JPEG. I would like to read the images into a 2D array which will make my work easy. Thanks in advance ...
I want to save a writableimage in Silverlight to disk. I found this tutorial : http://kodierer.blogspot.com/2009/11/convert-encode-and-decode-silverlight.html, and have based my code on the EncodeJpeg method. But at the: pixelsForJpeg[0][x, y] = (byte)(color >> 16); it throws an exception : Arithmetic operation resulted in an over...
I'm using the Python client library for the Picasa Web Albums API to upload some JPEG images to an album. But the photos appear very compressed once uploaded. In Picasa 3.6 there is an option to upload images in their original quality without any compression, but is there are similar option I can use from within the API? This is some of...
I have a Java network application and this is what I want to do: After user logs out, his interface window closes. Now, I want for another window to show up that will say something like: "Thank you for using our application". This final window should be borderless and without any available option, more like a plain picture (jpeg? why no...