Lightnings taking a ride

by ceinmart

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0

If you set exposure manually with a gray card, set a custom white balance and use a color checker passport to calibrate the camera you will capture the best colors your camera is capable of producing. Cameras are not colormetric devices. They do not accurately record colors. Adobe offers a free dng profile editor that you can download. This allows you to ...


0

using the saturation native saturation tool in gimp you can select the colors you want to boost it is a lot simpler than the methods mentioned above and as far as I can tell does a pretty good job of emulating the vibrance adjust in photoshop


1

When photographing still life with multiple light sources, reflectors and flags, I find that I if I happen to be using the camera’s on board spot metering, it rarely provides the correct exposure to bring out the colours that I consider to be true. I find, in general, the in-camera auto WB brings about the same results as a grey card and minor adjustments ...


3

To get colors right you need to color calibrate everything. You need to calibrate the camera with something like a color checker passport (for every lighting setup). You need your editing area to mostly color neutral (something colorful in your field of view while editing will throw your color perception off). You have to calibrate your screen with proper ...


0

Since you only have a black and white JPG there is no "color" information there. There is only shades of gray, "color" is lost. There is no 100% automated process to do this for you, you ll have to use a software to perform something like this: To perform digital colorization, a digitized copy of the best monochrome film print available is needed. ...


14

If this image were RAW, the color might still be there. But since it is JPEG, I'm afraid not. The fact that the image is in RGB format does not help, because I'd you look, you will find that in fact for each pixel, each of these values is set to the same thing: (0,0,0), (37,37,37), (221,221,221), or whatever. That is, they're all gray levels, just ...


6

Unfortunately, a JPEG is a one-way, destructive process. It may be RGB, but it no longer contains the colors originally present, only those written in the B&W conversion process. If you had the RAW (.CR2) file, however, you could recover the colors. Think of the RAW file as a master, and JPEGs are created from that.


1

Seems to me like you are dealing with atmospheric conditions that limit absolute image quality. The closer objects(what little exist) in your images look just fine. Do you have any images with subjects that are less than 100ft away primarily? I am also wondering about the surface temperature when these were shot, it may simply be too hot for sharp images. ...


5

Based on the color swapping in the result, I would guess the blue values are being summed into the red result and vice versa. I've made sillier mistakes...


0

If you fix the problem, you should get this result:


0

It might be that there's an embedded profile and some of your software can handle it, while other software cannot. If you load the file from your hard drive into your browser, will it be displayed as when it is uploaded to the web, or does it look different? Mostly a webpage will not change the information you post to it. Loading the image into your browser ...


1

What it looks like from your comments is that the software you are using is not taking into account your display and simply sending the image-data (either from the embedded JPEG or after RAW interpolation) as is. The result is that images look dark which just says that your display has a darker tone-curve than is usual. Firefox and Chrome correct for this ...


0

What color is the border/background on your screen when viewing the image in your editing program? What color is the border/background when viewing the image via a browser? Especially with darker images, the same exact file will look much darker surrounded by a light background than when surrounded by a dark one. (For the full effect, view each of these ...


0

You need to calibrate your monitor with a piece of hardware if you haven't already. See - What cheap colour calibrators are available for Linux? Secondly you need to understand color spaces and gamut. What color space are you capturing images in? What color space are you post processing in? Are you converting to sRGB before uploading to the web? Do you ...


5

As someone who regularly works in other spaces (most frequently Lab) I'd say not to worry about it. Since your rationale for going to another space is to make changes you're expecting that your RGB output will not be identical to your RGB input. Any noise should be well within acceptable boundaries. HSV is by no means perfect and it could theoretically be ...


-2

It is probably complicated to reply accurately to your question without knowing which parameters have been used to generate the chromaticity diagram. However the following facts remain: Your linked chromaticity diagram colours have been altered / blurred to attenuate the discontinuities introduced by conversion from CIE XYZ tristimulus values to sRGB / ...


0

Both have their usage: HSV / HSL colour models offer a quite useful separation of hue and saturation which is really important for creative operations such as colour correction and colour pickling for instance (as a matter of fact most colour pickers offer a way of adjusting / defining your colour through a HSV colour model). However the way those models ...


0

It has already been explained that it depends on the saturation of the reds. Using ADR in "Auto" mode helps a lot because the camera will underexpose automatically just enough to avoid clipping in any channel (unless the clipped region is very small, like a point light). I use it extensively not to worry about clipping: "ADR Auto" is in fact the same as ...


1

How can I make chromium and nautilus display the colors correctly? As I know it's still impossible to make chromium use color profiles. Workaround is using Firefox. I don't know about nautilus. Perhaps it doesn't support color profiling. Why does color profiling have to be set at the application level when I am already setting it in the GNOME ...


1

I work in the printing industry and my understanding of halftone mostly matches up with Matt's. Creating a halftone involves breaking up an image into dots (or similar shapes) all of equal ink density but varying in size. The dots are arranged in a regular grid. A black and white halftone would consist of black dots with large dots for the darkest areas of ...



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