Anyone know of an lossless image compression api/service similar to smushit from yahoo?
From their own FAQ:
WHAT TOOLS DOES SMUSH.IT USE TO SMUSH IMAGES?
We have found many good tools for reducing image size. Often times these tools are specific to particular image formats and work much better in certain circumstances than others. To "smush" really means to try many different image reduction algorithms and figure out which one gives the best result.
These are the algorithms currently in use:
ImageMagick: to identify the image type and to convert GIF files to PNG files.
pngcrush: to strip unneeded chunks from PNGs. We are also experimenting with other PNG reduction tools such as pngout, optipng, pngrewrite. Hopefully these tools will provide improved optimization of PNG files.
jpegtran: to strip all metadata from JPEGs (currently disabled) and try progressive JPEGs.
gifsicle: to optimize GIF animations by stripping repeating pixels in different frames.
More information about the smushing process is available at the Optimize Images section of Best Practices for High Performance Web pages.
It mentions several good tools. By the way, the very same FAQ mentions that Yahoo will make Smush.It a public API sooner or later so that you can run at it your own. Until then you can just upload images separately for Smush.It here.
Try Kraken Image Optimizer: https://kraken.io/signup
The developer's plan is free - but only returns dummy results. You must subscribe to one of the paid plans to use the API, however, the Web Interface is free and unlimited for images of up to 1MB.
Find out more in the Kraken documentation.
See this:
http://github.com/thebeansgroup/smush.py
It's a Python implementation of smushit that can be run off-line to optimise your images without uploading them to Yahoo's service.
As I know the best image compression for me is : Tinypng
They have also API : https://tinypng.com/developers
Once you retrieve your key, you can immediately start shrinking
images. Official client libraries are available for Ruby, PHP,
Node.js, Python and Java. You can also use the WordPress plugin, the
Magento 1 extension or improved Magento 2 extension to compress your
JPEG and PNG images.
And First 500 images per month is for free
Tip : Via using their API, you have no limit about file-size (not max 5MB each as their online tool)
Related
I am using amazon s3 services for hosting images. I have allot of images on my website.
I am also using CloudFront Distributions as cdn.
Image url's are fine.
But my images are still loading slowly as compared to some other top and competitors website.
Is there any way load images more fast?
Thanks
There could be numerous of other problems with images:
Loading too many images on the page. Make sure that you have lazy loading of your images that are not visible on initial render.
Using wrong size of images. This can be fixed by resizing images to correct size. Also, do not forget about responsive images. You can read more about them here
Using next generation formats. For instance, look at using WEBP for Chrome browser and JPEG2000 for Safari.
You can use Lighthouse tool to test your website on all problems listed above.
Also, it might be worth to consider using specialized CDN for images like pixboost.com.
Using a CDN like Cloudfront is the first step towards accelerating images. It addresses the challenges of Global distribution (your website is hosted in Europe but you have visitors from Australia => images will load from Cloudfront's node in Australia and be obviously faster than traveling from Europe). Also, it helps absorbing traffic peaks, for example during sales, Christmas, ...
To go further with image acceleration, you need to work on the images themselves and focus on 2 things:
resize the images to the target size (thumbnail, preview, full size, ...) and have different sizes for different screen sizes.
use image compression algorithms to "shrink" your images. You can use JPEG compression or alternative image formats like WebP, JPEG 2000, JPEG XR, ... These formats usually perform (shrink) better JPEG, however they come a big limitation: they are only supported by specific browser. Check caniuse.com for Browser support information: https://caniuse.com/#feat=webp
Bottom line, you will end up needing 15-20 versions of the same image to get the maximum optimisation across all browsers, device screen sizes, use cases, ...
There are multiple ways for automating this, for example by using ImageMagick. It's a great lib, but it requires coding and maintenance as it evolves quite dynamically.
Another option, is to use a Cloud-based image acceleration and delivery service. These services usually bundle image resizing and CDN delivery together and probably get you better CDN pricing as they negotiate big contracts with multiple CDN vendors.
We use https://cloudimage.io, but there are other great tools out there. Google is your best friend :).
Good luck with accelerating your page, faster images will definitely have a great impact.
I'm wanting to use ImageResizer to serve thumbnails that are scaled and watermarked on the fly on a high traffic website.
My testing has shown that the Watermarking plugin results in a significant decrease in throughput compared to just scaling them with FastScaling.
Scaled: 150+ images per second
Scaled & Watermarked: 35 images per second
I dug through the Watermark Plugin code and saw that it's using GDI+ for its image manipulations. Is it possible to make it use the more performant FastScaling plugin instead?
This is something we would like to improve. Currently, if either Watermarking (or the DRM red dot) are in use, performance reverts to GDI+ levels.
I would be happy to assist on a pull request for this, or discuss other options.
I need to convert scanned document images to a PDF document with high compression. Compression ratio is very important. Can someone recommend any solution on C# for this task?
Best regards, Alexander
There is a free program called PDFBeads that can do it. It requires Ruby, ImageMagick and optionally jbig2enc.
The PDF format itself will probably add next to no overhead in your case. I mean your images will account for most of the output file size.
So, you should compress your images with highest possible compression. For black-and-white images you might get smallest output using FAX4 or JBIG2 compression schemes (both supported in PDF files).
For other images (grayscale, color) either use smallest possible size, lowest resolution and quality, or convert images to black-and-white and use FAX4/JBIG2 compression scheme.
Please note, that most probably you will lose some detail of any image while converting to black-and-white.
If you are looking for a library that can help you with recompression then have a look at Docotic.Pdf library (Disclaimer: I am one of developers of the library).
The Optimize images sample code shows how to recompress images before adding them to PDF. The sample shows how to recompress with JPEG, but for FAX4 the code will be almost the same.
I am trying to bring an Indian Magazine online. This magazine is typed in CorelDraw using the proprietary Devenagari font (http://www.modular-infotech.com/html/shreelipi.html). So these guys have provided a USB dongle that you have to have attached to the machine when you want to access the fonts, and this software has been in use for past 10 years.
To put the magazine online, we've tried to convert it to pdf (by printing). The resultant pdf size is of the order of 30-50MB, even when the pdf does not have even a single image. I am guessing it converts the whole text into an image
It would be really difficult for users to read this magazine given its size. Though when I convert it to .swf format (for add flipbook kind of functionality) - the size reduces to 5-6MB. But there are people who like to download the magazine and then read. I have had no luck reducing the size of pdf.
I have done lot of research on web. The postscript, primo pdf do not help much. The best I could get was 30% reduction using DocuCom pdf printer. But it is still 20MB. I have tried to play with resolution, compression and quality but the best I could get was 18MB.
Ideally I would like to reduce it to less than 2MB.
I would be really grateful if you could help me reduce the size of the pdf! Considering that it has no images, I am hopeful that I can get some really good compression.
The (35MB) magazine can be downloaded from: http://merajhola.in/jin-march.pdf
I can't see any easy way to reduce the size of this PDF. There are no embedded fonts and all the text is drawn using vector graphics primitives. No amount of tweaking the resolution, compression and quality will have a significant improvement.
One possible option would be to embed the font as a subset rather than use vector graphics. That will almost certainly make a big difference, however I doubt the proprietary font license will allow it.
I'm sorry, but this Shree-Lipi thing just sounds wrong in 2012. It would be much better to use proper OpenType fonts with modern (say InDesign) or free (say LuaTeX) software.
I have googles page speed plugin installed: http://code.google.com/speed/page-speed/
It is saying that I have a lot of pngs that aren't compressed on my site.
I tried using the RIOT image optimizer: http://luci.criosweb.ro/riot/
However with attempts using multiple settings I couldn't get it to pass.
Any ideas? Thanks!
You could try pngcrush, but presumably you'll get much greater savings from converting to JPEG with quality slightly less than 100 (I usually find 92 pretty good). ImageMagick would be the tool of choice for bulk processing.
I never managed to create paletted PNGs, but in principle those should be pretty efficient when you're dealing with illustrations that only use a few colours.
The good png optimzers are:
pngout http://advsys.net/ken/utils.htm
pngcrush http://pmt.sourceforge.net/pngcrush/
optipng http://optipng.sourceforge.net/
advpng http://advancemame.sourceforge.net/comp-readme.html
For best results use all 4 in that order.
You can also use pngnq http://pngnq.sourceforge.net/ to reduce the image even more at the cost of some quality. (And after using pngnq, run the image through the optimizers.)
Thanks for all the suggestions guys. I think in my case the easiest method is to grab the cache files that google page speed produces. Here is the info: http://code.google.com/speed/page-speed/docs/using_firefox.html#savefiles
Also you'll need to run it in firefox as chrome doesn't produce the same files.