What can be done to a JPEG image without affecting the quality?
Digital Photography FAQA typical image editor will decompress and recompress a JPEG file when you save it, resulting in a loss of image quality. You can avoid this if you use special software that can do a very limited set of operations that don't involve recompressing, i.e., they just rearrange the data already in the file. You are typically limited to rotations at multiples of 90 degrees and some cropping actions: There are many others than I haven't listed. (See here for more.
Related QuestionsWill converting my image to a JPEG have any effect on image quality?
ZAPP Frequently Asked QuestionsAlways modify your images while they are in a TIFF or RAW format. These are known as "loss-less" formats. Once your images have been sized to 1920x1920 pixels, save a copy of the image as a JPEG. Do not make any modification to a JPEG image, which is a "lossy" format. This means that each time you make changes and save a JPEG, your image will degrade. For further details, please reference Image Preparation. This is an ethical issue for artists and for each show, fair and/or festival.
Related QuestionsCan I send a JPEG or GIF file of my image?
Art Department | Frequently Asked Questions about screen pri...Yes, although GIF and JPEG files are best suited for viewing on computer monitors. Due to compression, these image formats can occasionally lose unexpected detail or color. Small GIFs and JPEGs are an excellent way for us to preview your document quickly. If you are using a GIF or JPEG file as your finished artwork, please make sure that the image is made to the size that you want to print it and has a resolution of 300 pixels per inch or greater.
Related QuestionsWhen writing a JPEG image, how do I control the compression level/quality?
jGuru: Media FAQ Home PageYou can get the default writing parameters for a specific ImageWriter through its getDefaultWriteParam() method. The method returns an ImageWriteParam...
Related QuestionsHow can I modify the inactive system image without affecting the active system image?
Dynamic Root Disk: Frequently Asked QuestionsBy only using DRD commands to modify the inactive system image. DRD commands are specially designed to create the inactive system image and modify only that image.
Related QuestionsWhat do I do if I am unhappy with the quality of an image I purchased?
Fotolia.com - FAQ: Frequently Asked QuestionsFotolia offers a 100% satisfaction guarantee, so please contact customer support with the image ID and any concerns you might have with the image. back to top
Related QuestionsShould I choose gif or jpeg, and what quality?
Photoshop and Web Design FAQGifs are usually only best for images where there are large flat areas of a single colour, such as a diagram. Gifs can have transparent areas in them, and can be animated, which a jpeg can't. Gifs are also limited to 256 colours. Jpegs are preferrable to gifs for almost any image that isn't a diagram. Jpegs compress the data very well, meaning that your picture files will be smaller. This compression creates inaccuracies though, but these inaccuracies are not usually noticeable.
Related QuestionsWhat kind of image correction techniques should I use to improve image quality?
Rad-icon Imaging Corporation - Frequently Asked QuestionsX-Ray image sensors typically require some post-processing of the raw image data in order to optimize the image quality obtained from the detector. Rad-icon's sensors are no exception. Although it is possible to acquire usable images directly from a Shad-o-Box or Shad-o-Snap camera, one can achieve dramatic improvements in image quality by applying a few simple correction techniques. The three basic calibration methods are Offset Correction, Gain Correction and Pixel Correction.
Related QuestionsWhat is image quality?
Siemens - Vacuum Technology Division - Image Intensifiers - ...In general, image quality includes characteristics like detail-detectability and the absence of artifacts. In order to get a good detail-detectability, the spatial resolution and the contrast resolution have to be optimized. These characteristics are described and quantified by the modulation transfer function (MTF) and by the contrast ratio. even brightness distribution (brightness non-uniformity) and low geometrical distortion also contribute to image quality.
Related QuestionsSkilldomain.com - Training Videos on Demand for Management, ...Image quality depends on your equipment, Internet connection and screen size of your Windows Media Player. For best results, move back from the computer monitor a few feet for viewing. Image is optimized for viewing on a computer monitor at 200%. In your Windows Media Player, See "View" "Video Size" "200%".Related Questions
What factors might be affecting the quality of my wireless connection?
Wireless Network - UITS - University of ConnecticutSignal strength: This is basically determined by how close you are to an access point, and if anything is absorbing or deflecting radio signals. Interference from another radio frequency source: Unfortunately for 802.11b/g users, things like microwave ovens and 2.4GHz cordless phones operate in the same frequency band. These radio signals can severely degrade or completely destroy an 802.11b/g signal.
Related QuestionsWhat is JPEG image compression?
Picture Window FAQJPEG stands for Joint Photographic Experts Group, an association that has defined a standard image compression technique and file format that is supported by many different image editing programs. JPEG allows for adjustable levels of compression -- image quality goes down as you increase compression. Amazingly, the JPEG compression technique can reduce the size of an image by a factor or 5 to 10 with little or no visible image quality degradation.
Related QuestionsCan I send an ecard with my own image (Jpeg or GIF)?
Inspire21.com FAQs - Frequently Asked QuestionsNo, sorry... there are numerous other sites online which will allow you to do this, but our services do not include this feature. [BACK TO TOP]
Related QuestionsWhat is the difference between the TIFF and JPEG image formats?
Book Scan Bureau - FAQ - Specialist Book Scanning, Book Digi...TIFF (Tagged Image File Format) is a flexible standard that it is widely supported by many image processing applications. We use TIFF for black & white images as the TIFF compression algorithm used is best suited to this application. JPEG on the other hand is used for its ability to compress colour image file sizes.
Related QuestionsQ) - How do I save a Gif or Jpeg image ?
How to add gifs to emails and saving images to your computerA) - In Internet Explorer right click on the gif or jpeg image. From the drop down menu select "save as" or "save target as". This will save the image to your default folder, which in most cases is the "my documents" folder. In Netscape right click on the gif or jpeg image. From the drop down menu select "save image as".
Related QuestionsWhy is there an image size limit and why only JPEG images?
panoguide: gallery - FAQWe have to limit the image size because re-sizing the images requires the web server to do quite a bit of work, and this slows down the website. Large images also require more disk space. JPEG images are used because they are easy to manipulate and provide a good trade-off between image quality and file size.
Related QuestionsHow do I make a .jpeg, .tif, .bmp, etc image?
Customised Phone Covers, personalised gifts, mobile phone co...We accept over 30 different image file extensions that are created on different image creating software packages. Normally you will have a Save As... option which will allow you to specify what format you want your image saved as. Most applications will enable you to save as a .jpg as that is the most common file extension. However you cannot simply change the file extension to .jpeg, as you must use your image creating software to change this. Normally you will need to choose .
Related QuestionsHow can I change jpeg compression quality when saving ?
CyberBob - ImageIN Frequent Asked Questions (FAQ)You can use any value beteen 10 and 100, 10 being really bad quality - but very small file size, and 100, no-loss high quality, and large file size. Please refer to our help section regarding this feature.
Related QuestionsHow do I change the image quality setting for a particular image?
SuperBee.Net Frequently Asked QuestionsRight-clicking on an image within Internet Explorer and selecting "Show Original Image" allows you to view the original image.
Related QuestionsHow can I find out what the image quality of my digital image is?
photo guidlines and frequently asked questions(faq)Set your mouse pointer on the image, click the RIGHT mouse button once, and release. A small menu will appear. Set your mouse pointer at the bottom of the menu on ???Properties??? (It will highlight), click the LEFT mouse button once, and release. A new screen will pop up. You should see several tabs across the top of the page. One of them will say ???Summary.??? Click it. You should see a list of image properties.
Related QuestionsHow can I get the best image quality from PlasmaVis?
PlasmaVis Music VisualizationPlasmaVis looks best when running at high resolution and full-screen with a fast video card on a large monitor with a high contrast ratio. Dim the lights in your room for improved visual clarity and ambience.
Related QuestionsHow can I get the best image quality from AcidWax?
AcidWax Music VisualizationAcidWax looks best when running at high resolution and full-screen with a fast video card on a large monitor with a high contrast ratio, and a fast computer. Dim the lights in your room for improved visual clarity and ambience.
Related QuestionsWhy is the image quality so bad in the galleries I've created with Photoshop?
Digital Photography FAQEven if you tell Photoshop not to alter your images when creating the gallery, it recompresses them with high compression when copying them over to the images directory for your gallery. The workaround is to copy and paste your originals into the image folder that photoshop creates for your new gallery.
Related QuestionsHow will image quality results be reported?
NIST Iris Challenge Evaluation FAQResults will be reported using the Image Quality Receiver Operator Characteristic (IQROC) and Linear, Generalized Linear, and Generalized Linear Mixed Model frameworks. Information on IQROC can be found in the ICE announcement section on bbs.bee-biometric.org website, in the program manager presentation at the first Iris Challenge Evaluation (ICE) workshop.
Related QuestionsMy images appear smaller than the originals, or image quality is reduced. Why?
SimpleViewer - FAQSimpleViewer will scale down images to fit in the browser window. This is to allow the whole user-interface to appear in the browser without scrolling. Down-scaled images may appear to be lower quality than the original. To avoid this, either make your images smaller, or increase the size of your browser window. Also, check your maxImageWidth and maxImageHeight value matches the width and height of your largest image (in pixels).
Related QuestionsWhat is a JPEG?
Brownstock Royalty-Free Stock PhotographyJPEG is a standardized image compression process. (Joint Photographic Experts Group) A JPEG is designed to compress full color or gray scale photographs to aid in the ease of downloading from the internet, without compromising image quality. After downloading the compressed file, the photograph will be able to be opened at its full resolution.
Related QuestionsWDC FAQJPEG (pronounced "jay-peg") is a standardized image compression mechanism. JPEG stands for Joint Photographic Experts Group, the original name of the committee that wrote the standard. JPEG is designed for compressing either full-color or gray-scale images of natural, real-world scenes. It works well on photographs, naturalistic artwork, and similar material; not so well on lettering, simple cartoons, or line drawings.Related Questions
infinite expanse: articles: web dev faqA graphic file format that utilizes variable lossy compression. JPEG files usually have the extension .jpg, and are suited best for photographic images or those with more than 200 or so colors.Related Questions
Black Diamond Scanning - Frequently Asked QuestionsJPEG is an image file format and stands for Joint Photographic Expert Group. JPEG will compress the image files with minimal quality loss. If you are looking to scan your family prints and slides and use them mostly to share on the web, email and even make prints up at a non-professional level, this is a good format. We will scan all images in JPEG unless TIFF is requested.Related Questions
