#PHOTO DEDUPLICATOR NEF IMAGES PDF#
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Exports DC, OAI_DC formats for use in OAI/PMH servers. Digital collections can be created, indexed, displayed and validated using the software.

#PHOTO DEDUPLICATOR NEF IMAGES PDF#

Rescarta - The ResCarta Tools software empowers users to create non-proprietary digital objects with LOC standard METS, MODS, MIX and AudioMD metadata from existing TIFF, JPEG, PDF and WAV data through user-friendly interfaces.Tools that facilitate access to digital data by users. If the image will be viewed projected on a screen in a dark room, or on a monitor with dark surround, then what I have above is probably better.Īnyway, I'm not going to keep playing with this image since the point has been made regardless of additional tweaks you might want to make to it.Fine-grained list of all tools, by content type and function. Now that I'm seeing this image surrounded by a fairly light background on this web page, I think I probably should have used a logarithmic mapping of 3.5 or 4 instead of 3. 3, which brings up the dark areas even more quickly while having less of a effect on the light areas than the logarithmic correction does.Īnyway, the exact math isn't the issue, but that a non-linear mapping that expands the dark range while compressing the light range should be expected. I also added a 'brightness' correction of. This used a logarithmic correction of 3 f-stops, which means the darkest parts were expanded 8x more into the output than the lightest parts. In other words, the input range taken from the original is still the same, but the in-between values are no longer mapped linearly to the output image. This is now fixed by applying a non-linear mapping of the intensity without changing the input values that result in black and white.

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The colors make more sense, but the linear mapping is still unnatural since only a few small highlights are anywhere near full white.

Here is this same image with the darkest area mapped to full black in the output file and the lightest to full white, while keeping within the color balance for sunlight I previously measured for this particular camera: This looks a lot like the left image in your top picture, for the same reason. Here is the NEF file interpreted to RGB but otherwise mapped directly to the 8 bit intensity space of the JPG file:Īs you can see, this is dark and green. To clarify, here is a picture from my Nikon camera shown thru some of the steps of post-processing. Again, this is all normal and as expected. Many of my NEF files look just like what you show before correction. 694), which will obviously look green without correction. For example gray in sunlight with my camera has a relative weighting of (.541, 1. This allows you to find what gray is with each of these lighting conditions and have the software adjust automatically. You should also measure your sensor with sunlight and any other repeatable lighting condition you commonly use. Usually the first step I have my software do is find the darkest and brightest spots, and set them to black and white. There is plenty of dynamic range information left in the NEF file, even if everything appears to be 2 stops or more underexposed at first glance. Typically NEF files have a overall green cast if viewed without any adjustments. The different colors also have different sesitivities. It is quite common that the maximum intensity in a NEF file might be a small area of highlight, and the main body significantly less. NEF files show the raw sensor data, which is linear. Properly exposed photo the NEF looked pretty normal maybe a bit Underexposed photo, it produced dark greenish NEF, but when I took One last thing that I noticed is when I took intentionally an I made a picture of Histograms for previous picture that still isn't shown correctly:įrom the picture above you can see very different histograms on camera and in program. This is the picture (I uploaded NEF to but it got converted to jpg): OK I'm confused now, I just took another picture and This picture is opened correctly also in RawTherapee. So what do I have to do to load NEF files correctly? I also tried using the DCP profile file (from Adobes DNG converter) but there was barely any change.Īnyways below is an example of two very similar pictures, the left one was loaded for editing thus showing RAW data, and on the right only a preview (only as thumbnail) which is displayed correctly.

I'm fairly sure it's not programs fault because I've seen those kind of issues from other people on other programs.

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I also know DCP profile files can be used to show the photo in right colors.Īs a beginner I've decided to try post processing of photos on a free program called RawTherapee 4.2.73. I've been reading a bit and I know that an application I open my NEFs with must do some processing to show what camera usually shows on previews.

I've just started using RAW/NEF files and came across this problem with dark images.

Photo deduplicator nef images