I am having issues converting a png to tiff. The conversion goes fine, but the image is huge. I think the issue is that I am not doing the compression correctly? Anyone have any suggestions?? Here is the code sample public static void test() throws IOException { // String fileName = "4958813_1"; String fileName = "4848970_1"; St...
You can set the HcDynamicCompressionLevel anywhere from 0-10. I've heard 10 is bad (high CPU usage), but what's the magic number that works the best? ...
I have a large array with a range of integers that are mostly continuous, eg 1-100, 110-160, etc. All integers are positive. What would be the best algorithm to compress this? I tried the deflate algorithm but that gives me only 50% compression. Note that the algorithm cannot be lossy. All numbers are unique and progressively increasing...
I have a netbook running Linux and a large collection of computer books and reference material as HTML. I'd like some compact way of storing these books which can be browed without unpacking them first. This would save space and reduce wear on my small SSD. If there was some way to convince Firefox to browse files contained in ZIP file,...
I'm writing a Web application that needs to store JSON data in a small, fixed-size server-side cache via AJAX (think: Opensocial quotas). I do not have control over the server. I need to reduce the size of the stored data to stay within a server-side quota, and was hoping to be able to gzip the stringified JSON in the browser before sen...
What is the best free way to get your maintenance plan-generated backups compressed? I know there are non-free tools that will compress the backups, but I'm not interested in them. Options: Have a T-SQL task after the backups that will run a script through xp_cmdshell that compresses every non compressed backup. ??? Any other ideas...
Hello, I want to create a compiled JavaScript file for my website. For development I would prefer to keep the JavaScript in separate files and just as part of my automated scripts concatenate the files into one and run the compressor over it. My problem is that if I use the old DOS copy command it also puts in the EOF markers which ...
I am using CSS Tidy. Due to all of its compression measures, in some cases it's messing up my pages by combining or re-arranging selectors, etc. Even with the options shown below, pages with the compressed CSS do not render as they do with the uncompressed. My question is: How can I configure CSS Tidy to combine all of my CSS files into...
I have the following method in my code: private bool GenerateZipFile(List<FileInfo> filesToArchive, DateTime archiveDate) { try { using (ZipOutputStream zipStream = new ZipOutputStream(File.Create(GetZipFileName(archiveDate)))) { zipStream.SetLevel(9); // maximum compression. byte[] buffer...
I'm trying to use SharpZipLib to pull specified files from a zip archive. All of the examples I've seen always expect that you want to unzip the entire zip, and do something along the lines of: FileStream fileStreamIn = new FileStream (sourcePath, FileMode.Open, FileAccess.Read); ZipInputStream zipInStream = new ZipInput...
I am writing an xmpp library and I am trying to write a stream to support the zlib compressed data. I have two different versions one based on zlib.net and the other using SharpZipLib. The zlib.net version doesn't recognize the compression and the SharpZipLib version enters an infinite loop. You can find the appropriate code at http:/...
Using python 2.4 and the built-in ZipFile library, I cannot read very large zip files (greater than 1 or 2 GB) because it wants to store the entire contents of the uncompressed file in memory. Is there another way to do this (either with a third-party library or some other hack), or must I "shell out" and unzip it that way (which isn't ...
We've got a classic ASP application that is putting out some very large reports, where the resulting HTML is several MBs. We've made a lot of progress in trimming this down by reducing extraneous HTML, but I'd like to know if there's any way to enable GZIP compression on these dynamic .asp pages. I'm sure compressing them would be an eno...
Obviously having whitespace in css, aspx and html pages is a great advantage at design time. But is there a way to (a tool that will) clear all the whitespace from all the files and possibly merge javascript and css files in a more optimal way. I am using asp.net themes so there are quite a lot of separate css files that would be impro...
how do you encode words using the huffman code such as NEED ...
I have to interface with a slightly archaic system that doesn't use webservices. In order to send data to this system, I need to post an XML document into a form on the other system's website. This XML document can get very large so I would like to compress it. The other system sits on IIS and I use C# my end. I could of course implemen...
I've used UPX before to reduce the size of my Windows executables, but I must admit that I am naive to any negative side effects this could have. What's the downside to all of this packing/unpacking? Are there scenarios in which anyone would recommend NOT UPX-ing an executable (e.g. when writing a DLL, Windows Service, or when targeting...
I want to place all my programs content in a compressed archive file as its starting to get quite large. I know theres a few libraries around like zlib but i dont know how to make them do what I want to do: Be able to load textures/models etc from the file, curretly im using d3dx methods such as D3DXCreateTextureFromFileEx. I dont real...
I transfer a fair amount of XML from the server to the client, in my application (250K-500K each time). How can I compress it on the server, and decompress it on the client using standard JavaScript? Is it possible? ...
I have a program where I generate bitstreams, of about 80 to 150 bits or so, which I would like to compress, because I'm going to turn them into some kind of ASCII string so people can transmit them around. Does anyone know of a good, free bit-aware compressor that might work on such a stream? My main problem with the "standard options"...