PNG on the other hand, will actually count the number of times a letter appears, and rebuild the story word-for-word. Keeping the main ideas, but not 'word-for-word.' If you were JPG, you would read the whole story and summarize it. Let's say you're reading a book, and need to tell the story to someone else. jpg.Дisclaimer: The following is just some bits and pieces I remember from something I read a while back (though I'm not sure where), so take this with a grain of salt. It does however have a larger filesize than. bmp and thus understands transparency, and I love it and use it for almost everything artistically oriented that I do. jpg artifact problem, is more recent than. If you never plan to edit these images, it is a perfect solution.

What was exactly two colors a moment ago happens to be hundreds of marginally different colors now, and the fill tool only fills in ones that are exactly the same. Take the fill tool and a new color, and click anywhere.

jpg, close it, and open it again (so that you are sure you are reading the. To see this in action, go into your favorite image editor (I suggest MS paint), and fill an image with one color. This filter makes the image fit a very convenient formula that minimizes the file size, but slightly corrupts the colors of pixels in a way that is fairly imperceptible to the human eye. jpg is small and light and wonderful to use, but it manages this by running the image through a filter before saving. bmp is not compressed at all : The files are extremely high quality, but are also uselessly huge and unwieldy, and are slightly old fashioned so they don't know about new tricks like 'transparency'. It offers the best balance of speed, usability, and quality for images which come from a photographic source and have many real-life incongruities which are otherwise indistinguishable to the naked eye. JPG is the best format to use for photos if size is a concern. It also is the only good choice among these 4 for transparent images used on web pages. Since it's compressed differently from JPG, it can actually beat JPG in size AND quality when the image contains large blocks of exact solid colors. PNG is the best format to use if you MUST have 'lossless' image saving. It currently takes much more space than PNG and isn't worth your time unless you need it specifically for a programming reason. TGA used to be the 'de-facto' lossless format years ago. But typically most people do not want to use this format unless you need it specifically for a programming reason. This means the image will ALWAYS lose data.Д«MP has its uses. The computer then decides what the best approximation of that image would be to the human eye, and how best to save that without taking up too much space. It works by telling the computer 'I want an image that looks like this'. Saving an image as a JPG will always lose data - even if you already have a JPG, and change only a small item - after re-saving it, you will lose more data. This means it will take SUBSTANTIALLY less space than BMP or TGA under default settings. The key difference is that it's a more modern format and is always compressed. If you save your image as a PNG, it will look EXACTLY the same in the future. PNG is similar to BMP and TGA in that it is 'lossless'. This format takes even more space than BMP in normal situations, but can support compression (it usually doesn't). Most important is the ability to store 'transparency' - that is, how 'much' of a color shows as opaque vs how much it lets whatever is 'behind' it bleed through. TGA works similarly to BMP, but also supports more features. It (normally) has no compression at all and takes up a huge amount of space on disk. It essentially stores information as X1, Y1: blue. This is because this thread is in ELI5.Д«MP stores your image as data in a grid.

.bmp to .png compressor