Recompress

A smart logic tries to only recompress those columns where a significant improvement can be achieved, however, you can enforce the recompression using the ENFORCE option. A recompression of a table makes sense after inserting a big amount of new data. After that, the compression ratios do not need to be significantly better than before. We have discussed how to use the all-round VLC media player to convert video formats and edit videos before. In this tutorial, I will continue to show you how to use the media player to compress videos to smaller file size.

Recompressor
Free online utility that changes the compression level of a JPG image. Just drag and drop your JPG image here, set the compression level, and you'll get the new JPG with the new compression level in the output. There are no ads, popups, or other nonsense, just an awesome JPG compressor. Created by engineers from team Browserling.
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A link to this tool, including input, options and all chained tools.
Click here to select an image from your device, press Ctrl+V to use an image from your clipboard, drag and drop a file from desktop, or load an image from any example below.
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Compression Level
Enter the compression level here.Valid values are from 0 to 100.
Jpeg recompressor toolWhat is a jpeg recompressor?
This tool recompresses JPEG images. The compression level, which can go from 0 to 100 is directly linked with the quality of the compressed image. If the compression is set to 0, then the output JPEG has the lowest quality and the smallest file size. If the compression is set to 100, then the output JPEG has the highest quality and the largest file size. Note that if the input image already has low quality, then recompressing it at a higher compression level won't produce a better quality image.
In this example, we change the compression level of the input JPG image to 50 (out of 100). At this compression level, the resulting JPG looks almost the same but has a much smaller size.
Required options
These options will be used automatically if you select this example.
Enter the compression level here.Valid values are from 0 to 100.
This example reduces the quality and compression of a strawberry JPEG image to 0. The output is just JPEG artifacts and it's hard to tell what's displayed in the output image.
Required options
These options will be used automatically if you select this example.
Enter the compression level here.Valid values are from 0 to 100.
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Quickly convert a color image to a grayscale image.
Quickly convert any color in an image to transparent.
Quickly convert a bitmap image to base64 encoding.
Quickly convert a JPEG image to a single-frame GIF image.
Quickly view and extract frames from GIF animations.
Quickly change the compression level of a JPG image.
Hide information in an image by blurring it or blacking it out.
Change an image color space to HSL, HSV, CMYK, or RGB.
Change an image bit depth to 32, 24, 16, 8, 4, 2 bits or just 1 bit.
Convert all colors in an image to just black and white.

Jpeg-recompress is a command-line tool which can cut JPEG file sizes by 50% or more.

Recompress

The program works by intelligently selecting the lowest possible quality setting for your JPEG, which also has the minimum effect on its perceived visual quality.

The command line syntax is straightforward, and at a minimum you can get away with this.

jpeg-recompress in.jpg out.jpg

This tells jpeg-recompress to take the image in.jpg and process it at several lower quality levels. At each stage the program uses the structural similarity (SSIM) algorithm to measure the change in your image, and finally selects the lowest level that still gives you acceptable results.

We tried this out with a few sample HD photos. Processing was faster than we expected, 5 or 6 seconds to find the best quality level and save the image. File sizes were typically 50% to 25% of the original. Most important of all, there was no apparent difference between the 'before' and 'after' files.

Recompress

If this doesn't quite work for you, there are various options to try. You could use a different algorithm to check your images, set a new 'acceptable' quality level to further shrink the files, and there's a 'strip metadata' switch to save the maximum amount of space.

Cage.

Please note: the project download is 'jpeg-archive', but jpeg-recompress is one of the bundled files.

Verdict:

Recompressions

Jpeg-recompress is an interesting tool which can deliver spectacular results, significantly cutting file size while losing minimal image quality. If you don't mind running it from the command line, or are happy to set up your own scripts, it's a must-see. Leopardassist 3.0.