Recent questions tagged compression

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compression - LSB-DCT based Image steganography

I'm working on LSB-DCT based Image steganography in which i have to apply LSB to DCT coefficients of the ... : From different Research Papers: See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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862 views

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compression - Python ungzipping stream of bytes?

Here is the situation: I get gzipped xml documents from Amazon S3 import boto from boto.s3.connection import S3Connection ... temp files, they don't look good. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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990 views

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compression - Gzip versus minify

I had a somewhat lively discussion the other day about minifying Javascript and CSS versus someone who prefers using ... I am asking for scientific proof here. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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compression - What is a good Java library to zip/unzip files?

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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compression - How to create full compressed tar file using Python?

How can I create a .tar.gz file with compression in Python? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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942 views

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compression - Why use deflate instead of gzip for text files served by Apache?

What advantages do either method offer for html, css and javascript files served by a LAMP server. Are ... choosing gzip over deflate for http compression? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

compression - How do I ZIP a file in C#, using no 3rd-party APIs?

I'm pretty sure this is not a duplicate so bear with me for just a minute. How can I programatically (C# ... request. Any ideas on how to accomplish this? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

compression - How are zlib, gzip and zip related? What do they have in common and how are they different?

The compression algorithm used in zlib is essentially the same as that in gzip and zip. What are gzip and zip? How are they different and how are they same? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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942 views

1 answer

compression - Is the git binary diff algorithm (delta storage) standardized?

Git uses a delta compression to store objects that are similar to each-other. Is this algorithm standardized and ... it compatible with xdelta/VCDIFF/RFC 3284? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

compression - Decompress deflate archive on PHP corrupts files on Linux

When I try to decompress tar.gz or zip archive on Linux with: $phar->extractTo( $root .'/', null, ... /questions/65919665/decompress-deflate-archive-on-php-corrupts-files-on-linux...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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999 views

1 answer

compression - Is there a tool to extract a file from a ZIP archive when that file is not present in central directory but has its own LFH?

I'm looking for a tool that can extract files by searching aggressively through a ZIP archive. The compressed files are ... -file-from-a-zip-archive-when-that-file-is-not-prese...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

compression - How to uncompress a message with kdb (32 bit)?

I'm trying to decompress a message optimized by Deflate compression in kdb i.e. the following message: ... 65645652/how-to-uncompress-a-message-with-kdb-32-bit...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

1 answer

compression - How to zip multiple files using only .net api in c#

I like to zip multiple files which are being created dynamically in my web application. Those files should be zipped. For ... -to-zip-multiple-files-using-only-net-api-in-c-sharp...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

975 views

1 answer

compression - Does PostgreSQL support transparent compressing of tables (fragments)?

I'm going to store large amount of data (logs) in fragmented PostgreSQL tables (table per day) ... /1369864/does-postgresql-support-transparent-compressing-of-tables-fragments...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

compression - 如何将zlib，gzip和zip相关联？它们有什么共同之处，它们有何不同？(How are zlib, gzip and zip related? What do they have in common and how are they different?)

The compression algorithm used in zlib is essentially the same as that in gzip and zip . (zlib中使用的压缩算法与gzip和zip中的压缩算法基本相同 ... 有何不同，它们是如何相同的？) ask by Abhishek Jain translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

compression - Is there a tool to extract a file from a ZIP archive when that file is not present in central directory but has its own LFH?

I'm looking for a tool that can extract files by searching aggressively through a ZIP archive. The compressed files are ... to know how to extract them. Thank You in advance....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

compression - Compressed Audio Quality Factor

I'm working on a project where I compress audio signals, I need a factor to show the difference between the compressed ... I searched the web and I am a bit confused. Thanks!...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

compression - ZStd. Heap corruption after decompression

In most cases it work good. For example, I compress 3D mesh. Almost all models compressdecompress good. But 2 or 3 models ... in different modules (.exe and many .dll) and all ok....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.3k views

1 answer

compression - Unable to read w9 mode compressed gzip file using php

I have the large log files to compress. So, I am using w9 mode for compressing the file. $contents = "Containing some logs ... . Ask me if I need to elaborate a bit more. Thanks...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.0k views

1 answer

compression - QEMU fail on riscv compressed ISA

QEMU thinks that page crossing 4B instruction is 2B (compressed). Has anyone encountered this issue ? Is there a fix ?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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