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Showing results for tags 'gain'.
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It is possible to see how the Histogram for an image works on parts by using the Crop tool with the Histogram open, but the histogram is only updated when the crop is committed, so trial attempts have to be made with the crop tool, and any which don't look good enough have to be reverted with Undo. Would it be possible to make a tool which works this way (doesn't have to be Crop) but which allows trial measurements on selected areas? It is possible to have the Histogram open as well as one of the Scope tools, but would it be possible to have more of the Scope tools open at the same time? Not so good on a laptop, but on a large screen would be little problem. Lastly, re the selective measurement (crop) idea above. Some of the Scope tools don't work so well with a reduced area - unless the Gain is turned up. The max gain seems to be 500% which might not be enough for some small areas. Is there anyway of automating this so as to avoid having to manually turn up the gain in order to see any useful result? Should be possible, surely.
Hi- I just realized that the gain control under the scopes menu does not function the way a video person would expect gain to function. "Gain" means amplify or magnify the displayed signal, not increase graticule brightness. For example, it's common for those of us in the video world to look at a vectorscope in 2x gain mode, which zooms into the scope by 100%. This is due to the fact that real world hues are rarely saturated enough to fill the scope. Also, the most commonly used test charts in video, the DSC Labs Chroma Du Monde series, are printed at 50% saturation due to limitations in ink saturation technology so a vectorscope must be set at 2x gain to interpret those charts correctly. Your "gain" control is really a "graticule brightness" control. A true gain control would be useful, but that's not what you have here. I hope you keep heading forward with this. I do a lot of analysis of stills pulled from HD and digital cinema raw files in Photoshop and Lightroom, and I'd rather use a stills app with a set of real scopes to do this. Let me know if I can be of further assistance. I consult and teach for DSC Labs so I know waveforms/vectorscopes quite well, plus I helped design a product (Video Devices Pix-E monitor series) that incorporates scopes. Thanks.