#Monitor aspect ratio calculator how to#

The DAR (Display Aspect Ratio) is presented next. We must remember this as we will require this information shortly. It states that each pixel has a Sample size of 16:15. This value is read from data within the stream. The next value is SAR (Sample Aspect Ratio). This value is obtained by dividing the width by the height. Notice how the decimal calculation is also present. This value is stated under SAR (Storage Aspect Ratio). The aspect ratio of these measurements is 5:4. This reports that our stored pixel width and height is 720 x 576. How are these values displayed and calculated in Amped FIVE? Different standards and pieces of software use the same acronym, often without explicitly saying if it’s Storage Aspect Ratio or Sample Aspect Ratio. It’s unfortunate that we have to define two different definitions for the same “SAR” acronym. PAR: Pixel Aspect Ratio Width by height ratio of the pixels with respect to the original source (like Sample Aspect ratio, but calculated dividing DAR by Storage Aspect ratio). (Information, if available, that is stored within Mpeg4 streams).ĭAR Display Aspect Ratio: Width by height ratio of the data as it is supposed to be displayed (information, if available, that is stored within the file or calculated using other values). SAR Sample Aspect Ratio: Width by height ratio of the pixels with respect to the original source. SAR Storage Aspect Ratio: Width by height ratio of the encoded digital video (calculated simply by dividing the width by the height of the actual stored frame).

#Monitor aspect ratio calculator how to#

This post will go into the information reported by Amped FIVE and how to use that information to make any necessary adjustments.

Our initial post on the subject of Aspect Ratio correction detailed the complexities surrounding how an image should be displayed, and the importance of understanding how our digital data has been created.