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Enabling Color/High-Resolution Plans to Improve Image Quality OST

Views: 1767 Last Updated: 10/22/2021 09:04 am 0 Rating/ 1 Voters
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Issue

Your images are not as clear as you expect. Specifically, PDFs, or other images, look great in Adobe Reader or other viewers, but look grainy or incorrect in On-Screen Takeoff.

Resolution

On-Screen Takeoff can render images/plans in lower-resolution (2bit) grey-scale or in higher resolution (8bit) color. Because higher resolution images could cause performance products on older computers, we defaulted to low-res images in On-Screen Takeoff. However, most modern computers are capable of display and converting high res images without negatively affecting system or application performance, so beginning in OST v.3.96, we started enabling color/high-res images by default. 

Because you may be dealing with a set of images that was loaded prior to making this switch, your application (and any converted TIFFs) may be set to lower-resolution, below, we explain how to check this and what to do if you want to enable color on an existing project.

On-Screen Takeoff

In versions v.3.95 and earlier, the option was called "Enable Color PDF's" (which included other image file types), and the option was unchecked by default to allow lower-power computers to load images faster. In v.3.96 and newer, the we changed the option (and functionality) to "Disable Higher Resolution Images". The option still defaults to unchecked, however, by default, the program displays and converts all images at higher quality.

  • This option affects all image files but not if you have already "Converted to TIFF" in OST. Because the resolution is higher, please expect the program to take slightly longer to render/process images. The payoff is superior image quality and less chance of artifacts being dropped.
  • If you already converted your image files to TIFF at low resolution/grey-scale, to gain the benefits of high resolution converted files, 
    • v.3.95 and earlier: you need to click the "Enable Color PDFs" option, re-add all the images in the Cover Sheet, and then allow the program to convert them (again) to produce high resolution TIFFs.
    • v.3.96, assuming you upgraded and when the original image files were converted you did not have color enabled, make sure the option to "Disable Higher Resolution Images" is unchecked (turned OFF), and then re-add all the images to your project, then let the program re-convert them to TIFFs. (Going forward, all new bids automatically use high resolution images so you won't have to do this again.)

The setting for Enable Color PDF's (v.3.95 or older) or Disable Higher Resolution Images (v.3.96 and newer) is located under Tools > Options, on the General tab.

Your color images setting affects all image files you have not converted to TIFF. If you have already converted files to TIF, you will need to re-add them to your project to take advantage of the higher resolution/color settings.

After re-loading the original files, as "color", be sure to convert them - they will convert to higher quality TIFFs but will load significantly faster.

Image Color Difference

The following are examples of PDF images loaded with the default 2-bit black and white option, and with the 8-bit Enable Color PDF's option.

ost showing pdf in 2bit-no color resolution

ost showing pdf in 8bit-full color resolution

Figure 1: Color PDF displayed in 2-bit greyscale

3.95 and earlier: Enable Color PDF's unchecked (default)
3.96 and newer: Disable Higher Resolution Images checked (not the default setting)

Figure 2: Color PDF displayed in 8-bit Color/High-Resolution

3.95 and earlier: Enable Color PDF's checked (not the default setting)
3.96 and newer: Disable Higher Resolution Images unchecked (default)

Image Quality Difference

Even non-color PDFs (and other image files) look better when Color/High-Res is turned on.

ost showing pdf in 2bit-greyscale resolution

ost showing pdf in 8bit-greyscale resolution

Figure 3: Greyscale PDF displayed in 2-bit resolution

3.95 and earlier: Enable Color PDF's unchecked (default)
3.96 and newer: Disable Higher Resolution Images checked (not the default setting)

Figure 4: Greyscale PDF displayed in 8-bit resolution

3.95 and earlier: Enable Color PDF's checked (not the default setting)
3.96 and newer: Disable Higher Resolution Images unchecked (default)

Note
If you use ConstructConnect Takeoff, see this article: https://kbase.constructconnect.com/article/AA-00251.


Product documentation (user guides) describes functionality in the latest version of each major release and may not match the functionality in the version you are using. Please check the Product Information and Downloads pages by clicking one of the product buttons above.

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