I'm trying to show, using the eyedropper tool, the actual values of pixels in an 8-bit grayscale image (Mode command confirms that's what's there). In the Info panel, the eyedropper tool displays percentages for every type of color information (K, CMYK), while the "8-bit" field remains blank.
View 9 RepliesVia VBA macro, some way of getting RGB/CMYK color values of a bitmap pixel by pixel?
View 1 Replies View RelatedI am trying to quantitate data on some black and white microscope pictures I took, but the images are too bright in parts and I need to darken them down.
Is there a way that I can use photoshop to darken certain pixel values within the photo?
I have tried adjusting the levels in the picture so that the greys are limited, and I have tried changing the greyscale, but to no avail.
I need to make it so that two images have the same pixel values so that they can be calculated evenly.
I'm using a Canon 40D, Photoshop 6 and a Mac Mini running OSX 10.8.4.
I'm loading a RAW image from my Camera into Photoshop in 16 bit mode. As I understand it, my Canon 40D has a 12-bit A/D and RAW images have a 12 bit depth out of the camera. Loading them in 8-bit depth would lose some dynamic range/resolution, so I choose to load them in 16 bit mode.
Once the RAW image is in Photoshop in 16 bits, I scroll over parts of the image with the color picker to see the pixel values. This is where I lose understanding of what's going on. The color picker shows pure white values as 32768 and pure black values as zero. Apparently Photoshop (or Camera Raw) is shifting the 12-bit camera data up to fill the top 16 bits in Photoshop. But this is not entirely true! If it truly shifted all 12 camera bits into the 12 MSBs of the 16 bit Photoshop value, wouldn't the max white value be 65535?? If the 12 bits were shifted into the 15th bit, wouldn't the max value be 32767?? Where does 32768 come from? Also, what is Photoshop putting into the LSBs after it does the shifting?
I'm trying to do some averaging of lots of low light exposures using Linear Dodge in 16 bit mode. If photoshop indeed shifts the 12-bit camera values to the MSB of the 16 bit word, I'll eventually run into clipping when I sum my images. I'd have to go to 32-bit mode and that really slows down my system, almost to the point of uselessness.
What's going on in 16-bit mode?
I have an attribute blocks and this att block has two tag values , is there a simple code for to change 1st tag values automaticly according to 2nd values ?
for example :
1st tag (50x50) - 2nd tag ( 100 ) ==> 50x50-100
if i enter 201 valuse to 2nd tag then 1 st tag has to change as 100x100
if i enter 501 valuse to 2nd tag then 1 st tag has to change as 150x510
I attached a jpg file for explain much better
I am loving the painting tools in Mudbox, however I cannot find a way to paint on a non diffused model. Any trick to see 1 to 1 pixel values while painting?
View 2 Replies View RelatedI need to look at the pixel intensity of a gray scale image to write some code. I have used some trivial softwares like paintshop pro earlier where you can see the pixel intensity being displayed along with the co ordinates of the pixels as you slide your mouse pointer across. In Gimp 2.8 for windows, i can see the co ordinates but not the intensity. My image is a grayscale image.
View 4 Replies View RelatedIs there a way to have no layer value set for the description keys. I set all the layers, and now I realize I'd rather set this to no layers (boxes are all unchecked). I'd rather see no value under the layer column, but there doesn't seem like a way to set this.
View 1 Replies View RelatedI am interested in setting up a plugin that is able to read the greyscale values of a defined number of pixels throughout an image, average them, and then generate shapes based on the value output.
View 3 Replies View RelatedCan AUTOCAD sum values that are entered as text values? Attached is a table text whose right final values should be all sumed up? Is this possible inside AUTOCAD?
View 9 Replies View RelatedHow to get data values to display inside the columns on a column graph?
View 2 Replies View RelatedThe attached lsp puts tick marks at equal distances along a line/polyline and tags them with the distanace value from the start point. I draw using millimeter units but things like chainage should be displayed in meter units. Using this routine displays the values in millimeter units which I then 'find and replace' to edit their values to meters.
Take a look at the lisp to see if it can be altered to input the mm value at the start but output the meter value to the text values?
Attached jpg graphically shows my request.
I have a column graph. I want the data values to display in the columns. How do I do that? Here's what I have now:
I want the values 270018, 283148, etc. to display in the graph. Is that possible?
Working in Photoshop 6, I have a .png file where I want to select a portion of the image and adjust the RGB values to particular numbers (in this case, R = 66, G = 79, and B = 87). Normally, I could use the Paint Bucket tool to fill in the selected area, but in this case, the selected area has fine lines in it that would be wiped out by the Paint Bucket tool.
I went to Image --> Adjust --> Color Balance, where I can fiddle with the RGB values. Is there a way, using this tool, to adjust the color levels to match the desired R, G, and B values? Or is it trial and error?
If not, is there another way, other than Paint Bucket or Color Balance, to achieve what I want?
Since upgrading to Photoshop CC I cannot change my tracking values. If I type in 100 it shows 57; if I type in 200 it shows 118.
View 1 Replies View RelatedI have searched the forums and can not find an answer to this question.
If have two pictures of the same size, taken on the same camera with the same settings.
When I open one in Photoshop it opens at 72 dpi.
The second one opens at 300 dpi.
Please can someone explain why Photoshop does this or is it something I am doing?
In Step #9 it mentions negative values and Photoshop CS5 does not allow negative values ? It mentions a diameter setting, which got replaced by a size setting in CS5, once again I can't enter in negative values ?
View 2 Replies View RelatedIs it possible to extract raw luminance values from raw image files? Actually, a de-Bayerized flat matrix would be ideal but could (? maybe) deal with a 3 layer RGB matrix -- rather like the output from dcraw, only in PS. Preferably without gamma applied.
What I'd like to do: I'd like to use image stacking for exposure accumulation using "summation" but find that highlights blow out readily. Right now the workaround is to let the highlights go and bring them back with HDR from one (or more) of the original frames, but that's seriously clunky. I'd like a "scaled summation" where a luminance-dependent scaling factor is applied in the sum. I don't yet know how to get there from here in PS (there's a megaclunky way involving dcraw, Matlab, and a stacking program ...), but it seems to me that the first step is to get the luminance info.
There is a noticeable difference between color values specified in Pantone books/Color Manager and CS6. For instance, the correct RGB value for Pantone 158 CP should be 228/126/26, whereas Photoshop's RGB value for the same color is 245/127/41.
I have a subscription to Creative Cloud and all applications are up to date. When will this be fixed?
The input tonal value is 70% of a CMYK primitive color, e.g. cyan, using Photoshop's color picker.
For measuring the tonal values and differences, switch the info palette to CMYK and 32-bit mode. It's also possible to see the differences in HSB and Lab mode (depends on selected CYMK color profile).
Measured values of filled layers using different Photoshop functions: .....
In Photoshop 7 where it shows the information about the photo being worked on there is a list of EXIF tag numbers with values. What are these and what do they mean?
View 1 Replies View RelatedI like to work in a real 16bit (per channel) RGB mode.
When I create a new RGB image with 16bit there are only 8bit values (0-255 and not 0-1023) in the color picker and in my info panel.
Is PS CS2 just working internally with 16bit and doesn't provide manual access to all values?
make CD labels with Photoshop?
I'm trying to make full face labels (that go all the way to the hole), but I can't even find any label maker software that offers this. I don't know of a way to make anything but quadrilateral images in Photoshop.
I have a portrait shot on a grey cloth background and I need to remove the grey background.
Replace color is useless, as is the magic wand.
However the BG is comprised of pixels that are all VERY close to neutral ie
Red -231
Green - 232
Blue - 231
etc
I am trying to find a way to select only those pixels that are within 1 or 2 from the other components, ie it would select for the above selection:
Red - 230-232
Green - 231-233
Blue - 230-232
Is it possible to export current swatches palette as a list of hexadecimal and HSL values?
View 5 Replies View RelatedI just upgraded to CC from CS4. In CS4, when recording an action I could set the rulers to percent and a percentage-based value would be recorded rather than a pixel value. For example, if I recorded the creation of a vector shape that filled the entire canvas, the step in the action would create a 100% by 100% shape, starting at point 0%, 0%. This allowed me to run a batch on varying canvas sizes, and get a shape that filled the canvas no matter the size. In CC, it always records pixel-based values no matter what the rulers are set to.
View 1 Replies View RelatedWhen I have sRGB selected as my color space in Photoshop (CS6), often I see the out of gamut warning in the color picker. I expected every possible sRGB color value to be within the sRGB color gamut, but apparently I was wrong. I would like to see a horseshoe color space diagram that shows how far the values extend beyond the gamut.
I guess this occurs with all color spaces - you can select color values that are outside of the gamut. I'm not sure what the color space diagrams represent, but I'm guessing they represent the gamut.
So I am measuring the 'red' 'green' and 'blue' values of a picture after I adjust the white balance with a grey card.. I notice that if I measure the colors from 'selected layer' they are different then if I select 'entire image' those are both different if i do not do any white balance adjustment..
Which is the correct measurement that I should record? I want the the white balance adjustment included.
if I have a white point that's 231/217/183 (3x3 sample) and I also have a 228/228/228, which is the better to select as my white point? I've never been confident on whether it's better to get closest high values or highest value in one of the RGB points.
View 4 Replies View RelatedI open my file (which has an embedded srgb color profile) in photoshop (my rgb values are 246/205/218). When I use the color picker, it confirms that my color is accurate. Then I save the file as a JPEG (using maximum-12, and baseline), also embedding the same srgb color profile into the photo (which is also my working space btw). Then when I reopen the JPEG file in photoshop, and use the color picker.... my srgb values are (246/205/219). The difference is so small that it doesn't make a huge difference, but why is this happening? My PSD file has of course maintained the original rgb values.
View 14 Replies View RelatedI have a client who asked for a SPECIFIC shade of blue which happens to be 100,70,0,0. Now I know my screen will never show the exact color, always shows lighter. This part is ok. But I go and change the values on the color picker, and then 10 minutes later when I come back to it, the values changed to 95,65,1,0. Why would this happen, it KEEPS happening and not just one one color, on ALL OF THEM, it just changes the numbers slightly fromw hat I put in.
View 2 Replies View Related