Get to know the difference between RAW and JPEG

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And RAW?

Recent digital cameras, high quality model: n/a Yen products also could be taken in RAW it is out. In the corner of the digital camera, it is common to hear RAW, RAW is all about unity? The JEPG and what is different?

“Introduce”RAW”, compares common image formats JPEG, that will continue.

“Image quality / size” settings screen of the RICOH GR DIGITAL II. Selectable RAW

RAW is “raw data!?”

“RAW” (Lowe, row) is image data that basically can be called as “camera RAW”. Image sensor such as a CCD or CMOS is equipped with digital cameras and scanners perceived color information more if you make the raw image data.

Is to supplement the perceived image sensors in digital cameras or scanners, color information, tone and brightness to full color images such as JPEG and TIFF, or color information dramatically reduce subsidy and the completion of the degradation of image quality.

Data prior to dislike such image degradation, complement or subsidy is craving from photographers and creative scene completion and RAW data appeared as a subsidy before the “raw data”.

RAW data is image information such as CCD or CMOS image sensor system intact, so to each camera manufacturers and camera every asunder is.

So, for framing the RAW data output will require special camera software.

Is from the mystery subsidy of RAW data and output to a film camera at work “development” the RAW development software such as and is called the subsidy of the RAW data and output software.

RAW developer software released the RAW developer software, Adobe, Apple, and Ichikawa soft laboratory, from other things of each digital camera manufacturer’s corresponding to the digital camera manufacturers.

“The development of Adobe Photoshop Lightroom screen.


Image editing software that came with the RICOH GR DIGITAL II “Irodio Photo & Video Studio” of “DNG Converter” screen.

Difference between RAW and JPEG

So RAW “raw data” have the information image sensor is triggered by each 12-bit color, also the amount of information in the data becomes very much that image size is larger than 10 MB in 1 file normally should.

Two files are JPEG taken at the same time, RAW and DNG , to ) . RAW is more than four times in the JPEG file size.

Widely used as digital camera image format, JPEG has the color information for each 8-bit color, custom algorithm allows image data to “seedling”, are compressed. The data information once it has smaller size seedling because of this is irreversible.

Also, color information for each 8-bit color JPEG, in total of the three primary red, green, and blue light 24-bit and is called color usually becomes the image sensor is captured in the RAW in each 12-bit color information intact, so will be total 36 bit in the three colors of red, green, and blue. This alone, RAW contains more information on how are you see.

JPEG Red 8-bit 24-bit n/a Colors
Green 8-bit
Blue 8-bit
RAW Red 12-bit 36 bit n/a Color
Green 12-bit
Blue 12-bit

Incidentally shown below is two photos taken in RAW and JPEG at the same time the same camera (example comparison, so RAW even JPEG and has conversion for posting). Histogram shape differences can despite the cut in the same camera same moment, probably.

Compare the photo of the left and right? Compared to the impressive and seemingly green of the JPEG is vivid, bright, RAW is “be? Though it is raw data like this color? “And you doubt too….

Looks clean JPEG has a still camera as such processing might think is naturally gentle colors, histograms are RAW speaking well.

Find my next photo is either a JPEG in clear style from RAW or not?

The answer is shown below. The small photos, so know difference, compare the details of raw rich depth and profundity is seen.

It has destroyed the richness of the original process to clean up the appearance of the color depth and JPEG recording size smaller in this way, no exaggeration. JPEG is like having developed the photo shop out of the film.

RAW is for a purpose, and develop the film, takes longer to record RAW data size is large for this recording originally images on their own, which works to develop such exist.

Is indispensable to leave the photo works as RAW, introducing the actual handling in processing and editing the RAW data in the Lightroom and PS Elements.

And system reference : DNG

And the DNG stands for Digital Negative, advocated by Adobe image data standard (extension.dng). RAW required tasks such as proprietary for developing software used for each manufacturer splinters specifications for developing is to put the plug-in software in image editing software.

This DNG is Adobe advocated to have this RAW compatibility, and can handle in the image editing software such as Photoshop.

Will luxury compact digital camera Ricoh, such as in RAW data are logged as DNG files intact, can be used to convert RAW to DNG files once in many cases. File DNG is basically RAW.