Caitlyn Easter

For this assignment we measured grayscale values. While the final file was exported from InDesign, I used Photoshop to get the values of K—black in the CMYK acronym.

 

First, I learned about measuring density. To measure density I used 3 values:

• K = black

• R = range

• D = density

 

 Density is the tone of blackness in an image. Lighter areas are less dense than darker areas. Thus, when measured, their numbers will be lower than that of darker areas. In Photoshop, I opened the grayscale .PSD image file. The circles over points in the image represent the range of “blackness” I was going to be testing. Windows > Info brings up the CMYK data. Using the color picker tool, I clicked the lightest and darkest shades in each numbered circle and recorded them in the corresponding line in the InDesign file.

 

Since I was provided with a excel file that completed the calculations for me, all I had to do was input the lowest K value, and the rest of the data would compute. To measure density I used 3 values:

• K = black

• R = (100-K)/100

• D = LOG(1/R)

 

After computing all the data, I re-branded the InDesign file to match my brand. I created a pdf file with all marks and bleeds. I repeated this process with my own image that was taken in class.