managertrio.blogg.se - Rawdigger and lightroom historgram same

There remains the question as to why set_shot_meter(1,2,2,98,98) doesn’t work.īottom line: by exploring images with RawDigger I have concluded that if I restrict my histo_range counting, using Lapser’s functions, to between 130 (I may go higher for ‘safety’) and 4094, I should have a stable auto bracketing script (at least for my 12b S95 and G11).īTW I have noticed that the G11 is much slower at running my script than the S95. The differences will appear when you test the same image with both profiles and correct settings. In other words, data at the high end of the histogram will be more stable, ie you know where you are at 4094 and below. The current Histogram display in Lightroom and Adobe Camera Raw accurately display the file image data for JPEG, PNG, PSD, TIFF file types, but not for raw files. In contrast, RawDigger is way more oriented toward slow, methodical, scientific analysis of raw data from a single image. Also tons more really useful culling features. I will also initially meter in the dark areas so that my script will only need to take one more bracket at that end. Its designed for quick image browsing & culling and has all the same features you listed above: raw histograms, over/underexposure warnings, etc. Data in this range (130 to 4094) should represent my image data. I believe I can work around the two spikes at 127/1 by sampling above, say, 130, and 4094 and below. Well my script is an auto bracketing one and I wished to ensure I caught ‘all’ the highlights, even speculars. There appears to 'always' be a spike at 4095, also about 2000 count in RawDigger, even when I underexpose and skew the histrogram way to the left.

Both the S95 and the G11 have these spikes around 127 and 128, even when I over expose the image, ie histogram way to the right.

This data seems to be there all the time.

According to the WB setting (I took images of a neutral wall) there is a spike of about 2000 in RawDigger at 127 or 128, it varies according to WB.

I assume these are the ‘dead’ areas that any RAW processing ignores?

In RawDigger I see three lines lines on the image, on the left, right and bottom edges, ie a ‘few’ pixels in from the edge.

The clipping indicators are particularly useful, and I. If you have not started using the histogram in your work, it is definitely worth at least learning the basics of it. The other enhanced histo calls are working. Coming to you from Blake Rudis from f64 Academy, this great video tutorial will show you some of the deeper aspects of working with the histogram in Lightroom and Camera Raw.

I have explored the S95 and G11 through RawDigger and now 'understand' what is going on.įirst, when I tried to use set_shot_meter(1,2,2,98,98) it returned an error (nil value).