Photoshop :: Light Intensity Measurement
Jan 17, 2009
way to quantitatively measure the level of light intensity in different conditions. I know there are light intensity gauges that measure lumens and fc's but I was wondering if there is a way to measure the brightness of an image using photoshop?
So far I have noticed that there is a way to change basically everything about an image but I haven't found anything that gives me information about the picture itself besides its size and resolution.
Does anybody know how to measure light intensity or brightness of an image?
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Apr 7, 2011
I have a 3d Drawing with very detailed light source descriptions. Is there any way I can measure a light intensity (in lux) in a specific point of my drawing?
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Dec 21, 2010
in an animation i need to increase and decrease a light's intensity by my audio.for example a violin's sound causes this about a spot light on violin player's head.
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Apr 16, 2012
how can i have a result of neon effect. what material should i use and how high is my intensity factor for the light?
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Aug 27, 2008
I am trying to provide an image to an ad company for printing. When I change the color mode from RGB to CMYK, I lose the beautiful intense blue of the sky. I have tried to get this intensity back through photo filters, curves, levels, saturation, variations, color balance, selective color, and the channel mixer to no avail. Can anyone give me some tips on this? (I freely admit that my solution will probably be found in some combination of the above!)
I am using PS CS2 on WXP xp2.
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Aug 5, 2009
I'm trying to make a nice photo for a couple of friends, and I have the following disturbing problem in the image:
The lamp in the background is very strong and it bugs the eye -
How do I reduce the brightness of the lamp?
I have already sharpened the image and also reduced some lens blur in the black skirt area
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Nov 15, 2013
The EIZO CG223G monitor color intensity using PSE 11 Organizer differs significantly from using Fotoeditor for the same tiff and jpg files.
How to make the color rendering the same?
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Feb 14, 2011
I am trying to animate a casino-like light board made of tens of light bulbs/leds. I thought the easiest way to do it would be creating a matrix of bulbs arranged by material ID and then design a pattern in multi sub-object materiel so I could somehow scrub through it and achieve animation effect. The material modifier allows to change ID for the whole object only and MaterialByElement shuffle ID`s in a random manner.
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Apr 7, 2011
I am attempting to build a facsimilie enigma machine, I would like to know how best to create an effect so that when a key is pressed a corresponding letter appears to light up. Btw I am not looking for an animated image, I can take care of the transitions between on and off, I just need to create the two image states.
Attached Thumbnails
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Oct 26, 2012
How do you lock the pivot point of a light to the light itself? I thought just adding a Axis node would move the light and pivot point but the pivot does not move. Is there a way of parenting them together?
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Jan 17, 2012
Is it possible in GIMP to equalize the intensity of different pictures? So that the pictures have the same brightness and that the color curves (histogram) are identical?
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Jul 25, 2013
I have an image which i would like to measure the pixel intensity along a specific vector. I do not want the total pixel intensity for the entire image, i would like to draw a line, ie with the measurement tool and get a graph showing the pixel intensity as you travel along that line.
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Mar 29, 2011
Is there a way of adjusting all the colors on a design to 50%Â to 25% of their intensity at the same time rather than do it one by one?
I went to print>misc.>proofing options: but I only see full color proof and no addition level setting.
It's probably an easy step but i just haven't figured it out yet.
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Mar 8, 2013
Is it possible to make a heat/intensity theme map with Autocad Map3d?
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Apr 11, 2011
With Quicksilver renderer, if I lower the value of shadow intensity in render settings, the shadows still appears total black as with the value 1.0.
However, this same parameter in viewport settings works fine with Nitrous.
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Dec 6, 2010
How do I use the standard Revit can lights in a wood joist floor with drywall applied to the bottom? If I place in a suspended ceiling, can lights light up just fine. However, if I use them in the floor space of a wood joist floor, the light itself gets covered with the floor. How can I get the light to cut the floor out so I can see the light when it is rendered?
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Jun 22, 2013
monitor preview bmd intensity stretched in pal (a litttle bit), so a circle does not remain a circle, getting a egg. preview on computer monitor ok.Â
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Oct 23, 2012
I have tried multiple ways to have the intensity from our pointclouds show up inside Autocad 2013 with no success. I have tried multiple jobs exporting different formats from Cyclone 7.4. The file types I have tried are PTS, PTG, and PTX. All of these file read into AutoCad 2013 and create a Pointcloud. In AutoCad the pointcloud properties state that intensity values have been loaded, but when I attempt to view them the cloud stays white. I have also tried all the Shademode types in AutoCad. The intensity values from Cyclone appear between -1000 and +1000 values. The following is a list of steps I tried on multiple projects. Software Cyclone 7.4- AutoCad 2013 File types exported and imported PTS PTX PTG Shademodes Used All Standard Modes.
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Aug 5, 2011
Is there any trick to increase the intensity of the "highlight" option of the crop tool?
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Apr 3, 2012
Suppose you apply spiraling effect on the left edge of the figure (clockwise) and want to reproduce the same effect,but with the same intensity on the right side of the figure (reverse clockwise) so that both effects have symmetry.Clicking on the opposite edge of the picture and select the opposite direction (changing clockwise direction in the appropriate button) does not necessary mean that there will be the desired symmetry, once you can not determine how much pressure should be given to get exactly the same spirals intensity given to the left edge.
Is there any way to do it accurately? In what moment you should release mouse so that the number of turns is the same as previously established (left side)?
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Sep 27, 2013
In some of the Photoshop "Extended" versions, there was a function in which one could apply a known measurment to an image and then determine other dimensions in the image. For example, if one were designing a sign for a building and shot a picture of the building with a known 5' doorway, one could use the measure tool (or whatever it was called in that function) to tell Photoshop that the doorway was 5'-0" wide.
From there, after you laid in the sign design, and used the measure tool on the sign image, Photoshop would tell you the dimensions of the sign based on the scale you set with the doorway. Now for the big question: One, does that function still exist, and two, if so, where do you find it?
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Jun 12, 2013
I'm recording measurements (gray value) in a selection, using the "record measurement" in the measurement log panel. I need to repeat this over thousands of images. I've written an action that opens the images one by one (batch process), records the measurement and closes them.
However, after exactly 700 measurements, Photoshop stops and says that it cannot record this measurement. I've tried this with CS4 and CS5 (extended) as well, and I get the same result. why Photoshop measurement log has this "700 entry" limit?
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Jun 6, 2007
when i make a new image how many pixels/inch must i use for the measurments to be exact?
The reason I ask is because i have to crop a picture to an exact size for use as a pasport picture.
the picture is 1.7 in. X 2.13 in. but when i place it in a new 4X6 it takes up nearly the whole document
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May 19, 2009
I’m designing a DVD case cover. I’m printing it with my home printer, when I’m measuring it on the paper it larger than it specified in Photoshop. I have tried to check and uncheck the “Scale to Fit Image� but its still not accurate. My image is : 297x210 Res : 300ppi Why the measurement on the paper and the document size in Photoshop are not the same? something to do with the printer driver? Any help?
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Mar 25, 2013
I'm having trouble getting the edges of my eyes to look like they are part of the chair, which got me wondering. Is there a way to feather my edges with increased intensity closer to the edge? To be specific, I'd like to start the feather 100px inside the border with 60% opacity, all the way to the edge (border) with 0% opacity. I tried doing this manually a couple of ways and it just didn't look uniform.
I have also tried with the eyes seperated (without the middle area), but I still have the same issues.
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Jun 9, 2013
I am taking measurements of a large site plan for a report.  However, after I save and exit the image, it clears the measurement log.  In other words, after saving and exiting, and then reopening the image, the measurement log is clear. I can save the measurement log as a text file, but when I reopen the image, the data isn't there and I cannot find a way to link it back to the image. Is there a way to save the data with the image?
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I am using CS4 Extended on Windows 8.
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Jul 11, 2012
I'm trying to set the scale of my picture in CS6 but everytime I got to analysis -- set measurement scale I can't select it! I need it to make scale bars on my fluorescent pics so I can finish my thesis. I have CS6 (64x) from creative suite 6 design standard that I got from my school. The picture is .tiff file 24 bit
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Jan 27, 2013
in Photoshop Extended (CS6), when I set a custom measurement scale and save/close the file, the scale information is not retained after the file is reopenend. I have experimented with both .psd and .tif files. I used to be able to do this in CS3 without any trouble!
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May 23, 2012
when I'm using the rectangle tool or the marquee selection I get this awesome little 'context' box that shows how big the object I'm drawing is.. but it's on inches. How do I change this to pixels?
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Apr 28, 2013
I was under the impression that the rulers across the top and bottom of the canvas were measuring the length and width of the window at the given resolution.
However, this can't be the case, because I notice that when I crop a photo down from a width of 70 to a width of 20 on the ruler, when the crop finishes, the width of the canvas is back to looking like 70, so the ruler is not absolute, but some kind of relative measure? And is there a way to get an absolute ruler either of any unit?
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Jun 17, 2013
 In CS6 how do you disable or turn off the "measurement/info" fly out box, for example I am using the line tool to clean up a graphic, however at the point of my curser, the info panel is in the way and I cant see what I am tyring to erase.
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