Compression image master thesis

Now, let's work one of these problems backwards.  Let's say we want to print an 8X10 picture at 300 dpi.  What resolution must we have to do this? (stop here and figure it out, or read on  ;~)   OK, 300 times 8 is 2400 and 300 times 10 is 3000.  So we would need a 3000X2400 image to do this.  Let's see, 3000X2400 is megapixels!  That would be one very nice digital camera and one very large file, especially if it wasn't compressed. Do you have any rules of thumb for print size vs resolution? Yes.  First try to determine what your use for the image will be.  Will you want an 8X10 print or will you only be emailing it to a friend?  Choose the image size and amount of compression to meet these needs and capture at the least possible compression.  The trade off is large file sizes and you will fill up your media quicker but, later on you can dump the original uncompressed image to a CDROM or hard drive, compress the original and resave it with a different file name .  You cannot expand a previously compressed file so keep the uncompressed (or low compressed) file as a master.  To determine what resolution you will need for particular print sizes, see the chart below.  (from a printing company) 

Compression image master thesis

compression image master thesis

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