Serene Life

by garik

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You have to convert them to some other format, but that format doesn't have to be JPEG. For example, you could save the files as TIFF or PNG instead of JPEG. RAW files are data read more or less straight from the sensor, so it doesn't make sense to "resize" such files. You have to instead process them into a useable image format, which you can then ...


You can't view a RAW image, because a RAW file is not an image, it is a set of monochrome luminance values. When the data is converted to RGB using demosaicing certain settings such as contrast, saturation, etc. are applied. There has to be a value for those settings. You are much better off learning to use the histogram (also drawn from the JPEG preview) to ...


You could use dcraw to convert the raw image data to a "raw" tiff file that only contains the raw image data. You do that by giving the command "dcraw -D filename". This will produce a tiff file without any demosaicing or scaling. Such a tiff file is then smaller than an ordinary tiff file because each pixel is then only either a "red", "green" or a "blue" ...


You can use Magic Lantern to display RAW histogram in live view and image review. Head over to and download the version available for your camera. The installation instructions are different for each camera and can be found in their forums. In order to view RAW histogram in the preview, you could shoot with the technicolor ...


This is a complex answer, so feel free to ask more questions. Basically, one major difference between the images is that your noise sources in the image is vastly different. Because the noise is different and because its contribution is different with regard to exposure, the obtained images are quite different. Think of your camera detector as a well that ...


With "LCD screen", i assume you mean your camera's screen. The better question would then be "Why can't i see the the posterization on my crappy camera LCD?" and the answer is: because it doesn't have the quality of a real monitor. Also, on the camera, you see the jpeg preview, while in Aperture you see Aperture'S rendering of the RAW file. That said, i ...


To understand why you can't do this, it's helpful to understand how RAW works. A RAW doesn't actually contain colored pixels, it's a single channel ("gray scale") image representing alternating red blue and green pixels called a Bayer pattern. To actually get the "actual" pixels, you have to extrapolate from each of the pixels neighbors using a complex ...


Stitching RAW files is problematic. In order to get a good stitch you ideally want to correct vignetting and distortion first, something that you would do in your RAW converter, then just output TIFFs of a smaller size (no need for full size when combining multiple files usually) and things will be both quicker and more accurate.


PTGui can stitch RAW and DNG images as input. However, remember RAW files do not contain any editing adjustments (such as CA correction, noise reduction, or vignetting correction), so there's not a lot of advantage to be had by going this route, rather than converting your RAWs to TIFFs, and then stitching the TIFFs. See also: Are there any open source ...


RawTherapee supports Canon PowerShot G16 starting RawTherapee version 4.2.


Your best option is probably using the "Neutral" picture style, this will apply minimum processing with a flat tone curve and no sharpening. This will give you the closest thing to a raw histogram available in-camera but it will make the jpeg look dull and lifeless - so you'll lose the ability to use the jpeg and preview for anything except judging focus.


The only "real" RAW option is the option RAW. The other two, S-RAW and M-RAW where introduced in the EOS-1D Mark III and EOS-1D Mark IV respectively as options to decrease the file size. The S-RAW has about 1/4th the number of pixels and half the fil size of "real" RAW and the M-RAW about 54-60 % of the pixels and two thirds of the size of the RAW option. ...


To everyone who answered this question, thank you VERY MUCH. Actually, the problem lied in my monitor calibration (manual calibration - advanced settings). My husband opened the images on his laptop, and it was a perfect match (in quality) with the image which appeared on my LCD camera screen. I am so relieved, because the posterization I was seeing was ...


from Charles Poynton "The rehabilitation of gamma": Misconception: The nonlinearity of a CRT monitor is a defect that needs to be corrected. Fact: The nonlinearity of a CRT is very nearly the inverse of the lightness sensitivity of human vision. The nonlinearity causes a CRT’s response to be roughly perceptually uniform. Far from being a defect, ...


Consider this example from Cambridge in Colour: By applying gamma encoding, we are able to represent the original image more accurately, with the same bit depth (5, in this example). This is achieved by using the 32 levels in a way that more closely corresponds to the human eye. In other words, it's a form of compression. JPEGs, for example, can actually ...


Very, unlikely, unfortunately, without a update to your image manager. If the chips are of different generations or types (CMOS vs CCD), the data is typically recorded with different RGB primaries, mask pixels and other data. If the chips are the same, manufacturers still sometimes make changes in how the sensor is used to improve noise quality, or some of ...


I had the same issue, and looked up which versions of Lightroom, Camera-Raw, PS were required. In my case updating Camera-Raw plugin allowed my version of PS to read them, but I could not do so with Lightroom. So, I went with Adobe's free DNG converter.


It does not matter what you set in camera as RAW. RAW is RAW, it is not modified until post. Most monitors will not display aRGB and many printers do not print aRGB. I select aRGB as the assigned profile and my printer tells me much is out of gamut. I am forced to work in sRGB as that is where my color gamut is for my monitor and printer.

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