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Basic question about saving a jpg as a tif file
I brought a file into my computer from my camera. It is a .jpg file -
1,868kb with dimensions 2592 x 1944. I save it as a .tif file and that file is 14,766kb with the same dimensions. My question is this - where did the extra 12898kb come from? The original file from the camera I assume brought in just so much information (1,868kb). Is the remaining balance something generated by my computer? What is it? I know raw puts everything the sensor gathered, but .jpg is an edited and lossy compression. I am confused. Thanks in advance for making this understandable. Frank |
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Basic question about saving a jpg as a tif file
On 29 Gen, 20:07, Frank Calidonna wrote:
I brought a file into my computer from my camera. It is a .jpg file - 1,868kb with dimensions 2592 x 1944. I save it as a .tif file and that file is 14,766kb with the same dimensions. jpeg is a compressed (with loss) format, TIFF is an uncompressed format so TIFF use 8 x 3 bit per pixel (if 8 bit per color are used) Do 2592 x 1944 x 3 / 1024 and will obtain 14,7 MByte PC doesn't add any information (how could?) but just interpolate the info coming from jpeg. The advantage with TIFF is not to lose anything saving and re-saving the image, instead of jpeg that degrease quality at any chenge and save. But, if original picture is degraded, also the TIFF one will be, just not degrading more. |
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