can you enlargen a digital picture without loosing its quality?
455892
Not really. The only way I know of doing that is using photoshop CS2 and making the picture a smart object. This will allow you to enlarge it to to an extent, but I've never really messed with how large you can make the picture. You could import the picture into Adobie Illistrator CS2 and do a live trace with as many colors as the computer can handle and enlarge the vector image as large as you want.  However, the picture isn't going to be rasterized, and won't look absolutely real, but the results can look really cool.
1148878
So long as you adjust the dimensions of the image in concert with the resolution, you will maintain the dimensions.\n\nFor example, an image that measures 8 inches by 10 inches at 300dpi would measure 16 inches by 20 inches at 150 dpi, but still print out as an 8x10 if you printed it at 300 dpi.
722954
you can never increase image quality\n\nits always a good idea to save an original
177920
http://www.myimager.com/\n\nmight be able to, it's an online thing so you just upload the pic and edit it, nothing to download. Optimizing is one of the choices.
403947
Yes - the only problem is that image will probably be unrecognizable.  The more you compress an image the worse it looks.  1K is a little small for effective image work at that size.  Note - the pixel dimensions are what is important i.e. 416x416.  The dpi doesn't change the amount of information in the image.  It's used to know how to scale it on a printer.\n\nYou can do this in just about any image editor.  The JPEG format allows variable compression settings.  If you set it low enough you can go below 1K.\n\nDo this in your own software, you have to find an image library.  On Windows, GDI+ can load and save images in a variety of formats (including JPEG).  When saving you can set a quality level that indicates the amount of compression.  Most jpeg routines allow quality to vary 1 - 100 with low numbers indicating more compression (and hence less quality).\n\nI'm not familiar with Unix/Linux libraries.
506981
In any image editing program like The GIMP or Photoshop, use the "Scale Image" option to make it bigger, and save it as a new file. Don't save over the old one.
1095502
Yep, but your resolution will need to be exceptionally high, and once on the computer you'll have to have a program which can invert the image.\n\nI recommend  "Picture it" version 2.0 for extreme practicality and usefulness. (it's about 10yrs old but a goody)
481779
The lower the resolution picture that you have to begin with (your source picture), the less information there is in it, so when you enlarge it, the default enlarge operation will pixelate it, as it just in effect increases the size of the source data.\n\nYou can of course apply filters to the enlarged image. So you could apply a blur or soften filter to get rid of the pixelation. You can also apply inference algorithms to it, which look at the enlarged picture, and by inferring which pixels / colours / lines / edges are most likely to be there - it won't guarantee you're right, but it's educated guesswork. This is what you often see implied on films when the FBI zoom into a blurry picture and get high detail, although it's not nearly as easy as the films imply.\n\nOf course, in the end, the best way is to ensure that your source image is of a high enough resolution, so that you can  always go back to the original high res source image.
180246
Yes. There will be a small quality degradation, but you probably won't notice it. You'll notice these kinds of things if you copy a copy several times.
261390
You cannot increase the resolution of a photo already taken. The reason is that you'd have to "insert pixels" to make something a better resolution. No program out there knows just what pixels it needs to insert to increase a resolution.\n\nTry shrinking the video in size (width x height). That usually makes the photo look less grainy.
443406
There really isn't software to make a picture sharper. When you see these TV shows that take a outdoor camera photo and turn it into someones face 100 yards away it's not real. If the resolution is not in the photo it can't be enhanced really well. That's why when the news show pictures of convenience store robberies they are blurry.
321850
Yes, there is an easy way. If you are using Windows XP, open the photo in Miscrosoft picture manager.\n\nUse the Picture>resize menu option. After that, simply reduce the size in percentage, and save as another file name to get the reduced size. Keep in mind that reducing the size will also reduce the clarity of the pictures to a degree, whatever tool you use.
274273
For upsizing a photo, you need some sort of photo editing software. Google's Picasa (http://picasa.google.com) will do the trick.\n\nWhen you upsize it, however, it will come out looking blurry. It would be much better to find someone with a digital camera to take a larger picture of you.
82117
http://www.imagemagick.org\ntells how to convert between almost any format\nand any other.
613132
Well, there are different ways to shrink it. There is the dpi level and the resolution. Lowering the dpi but leaving it at the same resolution will reduce the file size and the quality.  Lowering the resolution but not the dpi will also reduce the file size but the image will be as clear as possible still.\n\nAs for software you can use, I find Photoshop to be the best, but if you are looking for something free, try GIMP for Windows. Its a port of the famous Linux photo/graphic editing package.  You can find the link in the source here.\n\nSo for a cell phone, I would guess a small 120x120 resolution with s 72dpi would be more than enough.  Without knowing your phones model I can't be sure though.
1075605
If you can make a vector output instead of a raster one (like the bitmaps), there will be no quality loss.\n\nYou do know everthing in flash is vector based.
643717
make the picture larger or equal to the res'.