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15

This probably doesn't answer your question. Some possible alternatives... Have you considered CSS instead: background: linear-gradient(45deg, #3d667c, #1d283e); Or perhaps you could use the SVG base64 technique (generator tool here): <svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 1 1" ...


12

You could use Vector Magic, which is a pretty awesome service that converts images to clean vector art. I tested it with your image and the result is much better than the original JPG version and half of it's size.


7

Ten years ago, this would have been a great question. But in 2011, unless you are sure that a high percentage of site visitors will be on dial-up or similar low-bandwidth connections, the effort put into selective compression doesn't produce enough value to be worth it. The differences in quality and file size are so minimal, and broadband connections so ...


6

If the target file type is PNG, then you have a few options. First, open the PNG in Fireworks then save optimized. FW compreses .png files better than PS. Then use PNGOUT(freeware) to compress further. Typical result is about 30% less than what Photoshop would produce.


6

MozJPEG is a modernized JPEG encoder, probably the best one you can find. JPEGmini is pretty good at recompressing JPEGs to the lowest still-good quality. They claim to have a better model to predict which lossy changes are imperceptible to the human eye. Adept tries to automatically adjust quality, lowering quality of "uninteresting" areas of the image. ...


4

Fewer colors + 100% dither + no Transparency Dither = greater size. Adding a transparency dither or reducing the color dithering to less than 100% will most likely reduce the file size. When you reduce the color table and have a high dither setting, you ask Photoshop to dither with fewer colors. This actually creates more color data to maintain from frame ...


4

When applying anti-aliasing in the Save for Web & Devices panel the entire export gets the same anti-aliasing method but you can apply the anti-alisaing on an object level. Select an object and go to Effect > Rasterize.... Choose your desired ppi, it is better to always choose Use Document Raster Effects Resolution because then it will be easy to ...


4

In GIMP, my tool of choice for this purpose is Filters → Blur → Selective Gaussian Blur: With some tweaking of the parameters, it can give results very similar to what Lipis produced with Vector Magic. The basic rules are: If any edges look blurred, decrease the max. delta. (Look for edges with low constrast, such as the blue text on blue in ...


4

In your case I would have maybe used GREP styles shown on the image below. Here ~h stands for End Nested Style Here character which serves as a style divider (visible in special characters mode as a backslash). If you feel more comfortable with any other character feel free to replace all the ~h-s with anything you like from the drop-down menu. The ...


4

Adobe's Photoshop supports something like 300,000 pixel canvas's. It has a "Save for Web" feature that allows you to save a PNG24 file (which supports your alpha transparency). It too has all the functions you are looking for.


4

Graphic size optimization is both an art and a science. Different kinds of images respond differently to different compression schemes and output formats. For photorealistic images jpeg is usually the best output format. Jpegs can have various amounts of compression applied, and some images can withstand much jpeg compression without obvious degradation ...


3

All pngs are 'good' and 'sharp' as they are losslessly compressed, unlike jpgs. It's just a matter of experimenting with settings that keep an amount of colour that you're happy with while keeping file sizes as low as possible. In Photoshop, the 'Save for web' exporter allows you to view 3 different optimised versions of the output as well as the original. ...


3

In your question, you write: "Tools like PNGOUT blithely strip out color profiles (the iCCP chunk), which arguably makes the tools lossy because it changes the appearance of non-sRGB images in nearly all modern browsers." While pre-converting the images to sRGB is indeed one solution to this problem, another is to tell PNGOUT to keep the color profile ...


3

I finally solved it. I'd used the ICC profiles available on the ICC's website, which was strangely enough a mistake, since they introduce the errors I mentioned in the question. GraphicsMagick (slightly lossy) GraphicsMagick does this in a very slightly lossy method (brighter colors are reduced by one, like from #cccccc to #cbcbcb). However, this doesn't ...


3

Honestly... I copy/paste to Photoshop as a Smart Object and Save for Web with Photoshop in these instances. AI's SFW anti-aliasing isn't stunning when the objects are mixed.


3

At the risk of being frowned upon for not answering your question, I would say this: don't worry about file size. Instead, worry about load time. They're certainly directly correlated, but the difference is that load time is universally applicable. A 2MB file might load instantly on a powerful hosting site such as imgur but not on an inexpensive shared ...


2

A tiny version of an icon must be created for the specific size. Even in the print world, we often do two versions of a company logo (which is, when you think about it, an icon with another name): one for "normal" use and one for small applications such as a business card, but it's even worse when your work is constrained to a grid of great big blocky ...


2

You can: reduce the image size (fewer pixels = smaller file) reduce the frames in the animation reduce the color pallet further posterize the images (larger flatter areas of color compress better for GIFs) Use software that can add additional compression techniques (IIRC, Fireworks is good for this)


2

Photoshop's "Save For Web" isn't the best tool indeed. It compresses PNGs poorly and doesn't fully support alpha channel in 8-bit PNGs. Instead use ImageAlpha+ImageOptim on Mac or TinyPNG+PNGGauntlet on Windows. Here's a real-world test showing that PNGs with alpha channel can be reduced to less than quarter of Photoshop's size.


2

Lately I've been using ImageOptim and ImageAlpha with very good results. ImageOptim is very good at optimizing and compressing GIF/JPEG/PNG and I'm using ImageAlpha to convert most of my images to PNG with good results: most of the times I get PNG files (full color) that are smaller than GIFs (50-60%), with very little quality loss. It even has an option ...


2

If I understand your question, you've got an animation with (lets say) 5 frames. Frames 1 & 5, 2 & 4 are identical. So you'd like Photoshop to play the gif like so: 1,2,3,2,1. Unfortunately that's impossible with an animated gif. Gifs are built to allow the data to stream, displaying the next frame in sequence as the data is loaded. The first frame ...


1

That's a fair number of questions. In reverse order, then: There's no automated tool that will substitute for your judgment. You should not enlarge a sharp (in focus, fine detail) image beyond its natural resolution. If the image is 1024 px wide, then your breakpoint should be at or before 1024 px. Soft images (blurred, sky, misty scenics) can be pushed to ...


1

When you resize an image with only a few colors, the resulting file, whether it has larger or smaller dimensions, is likely to have more colors (due to interpolation) and therefore be less compressible. Also if you started with binary transparency the result will likely have full alpha, which is also less compressible. Finally, your "bit depth" (actually ...


1

Regarding #1, I posted an answer on a similar post where I used a script to exclude "draft" pages. Perhaps you could use that, or flip the script to only include pages that you mark? As for #2, that can be accomplished with a script. Give this a try: var currentPage = app.activeWindow.activePage; // Find the active page. ItemsOnPage = ...


1

I did some playing with the image... extracted a copy from your PNG24 example and tried several methods. In the end I'd use this, myself: (not great on white.. better on a grey) What I did was use PNG8 with no color diffusion, then set the transparency diffusion to 50% dithered, and added a grey matte color (#dddddd). That slight grey matte helps the ...


1

I know you didnt say this but why wouldn't you just code everything in CSS if you are worried about load times and file sizes? Circles tutorial, David's demo and another good tutorial by Brian Hadaway Angled text tutorial EDIT: Other circular questions on the stack here and here


1

I don’t know the limitations of the iphone, but i think it is pretty similar to the web. The compression of PNG is good for sharp text, but it has no options on how much you want to compress your image. PNG 24 will be the way to go, if you have alpha-transparencies and a color palette which affords over 256 colors. PNG 8 can be compared with GIF. You ...


1

I usually use photoshop's save for web and devices, but it has no options for compressing pngs and I also wonder if there are superior compression algorithms available? Firstly, should you be using PNG or JPEG? If you are saving an image for the web, these days the choice is between PNG and JPEG. PNG is very good for images that will losslessly ...



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