TODOs (updated 12/10/2024)
Steps in rawtherapee for SemiF (vid)
Reformat Command line instructions for SemiF
Minor cleaning/formatting for both Field and SemiF
Flow chart of data transfer and processing for both Field and SemiF (Matthew Kutugata) could be a general flowchart placed in the main preprocessing page.
Courtney Belcher Courtney Belcher could give it a shot
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When downloading a Semifield batch, we need to copy it It copies over to the local user from the NFS Lockers.
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Semifield batches can take anywhere from a few minutes to half an hour to copy over, depending on the batch size. This is why it It is important to open a new screen for copying. Be sure only Only to copy one or two batches at a time within their respective screens to avoid disk space problems.
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If the batch has either been completed copying or there has been an error copying, there will be an input line. If there is no input line, the process has not completed.
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We must know the # of images in the original batch. Use this command:
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ls /mnt/research-projects/s/screberg/longterm_images2/semifield-upload/<batch>/*.ARW | wc -l |
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*The output should be equal to the above command; should be 0 after running the pipeline
Use this command:
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ls /home/psa_images/temp_data/semifield-upload/<batch>/*.ARW | wc -l |
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After running the pipeline, check if all the ARW files were have converted to JPGs and have moved to the longterm “developed” storage.
Use this command:
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ls /mnt/research-projects/s/screberg/longterm_images2/semifield-developed-images/<batch>/images/*.jpg | wc -l |
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Example: MD_2024-07-02
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ls /mnt/research-projects/s/screberg/longterm_images2/semifield-upload/MD_2024-07-02/*.ARW | wc -l |
output: 560
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ls /home/psa_images/temp_data/semifield-upload/MD_2024-07-02/*.ARW | wc -l |
output (before running the pipeline): 560
output (after running the pipeline): 0
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ls /mnt/research-projects/s/screberg/longterm_images2/semifield-developed-images/MD_2024-07-02/images/*.jpg | wc -l |
output (after running the pipeline): 560
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./RawTherapee_5.8.AppImage |
Be sure we are to be located within the Semifield_tools folder.
RawTherapee will launch in an a separate window, opening to the most recent profile that has been worked on. Select the appropriate batch and allow to load. Scroll through, making a mental note if some images are out of the ordinary (i.e. too bright, too dark, out of focus, etc.).
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2.1 Creating a color profile
Our The goal when creating of making a color profile is to have every image look similarly to the rest of the batch. It is good practice to scan through all images to and get an idea of what they look like, if there are any outliers, or anything else to notenotable.
2.11 Look for a Color Checker
We want to use Use an image with a color checker, if one is available within the batch. Choose the most average looking picture (lighting and color-wise). If they all look reasonably similar, choose any of the optionsoption.
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*In Semifield applications, we typically use a smaller , Color Checker lanyard is typically used. The Field Color Checker may might be used instead, but the larger smaller one is preferred for this application. Either is acceptable.
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To bring in a recent profile, find the folder icon towards the top right of the screen, located to the left of the save button. This will open a window containing a list of saved profiles within the local user. Choose the most recent date in relation to the image being worked on now. It is helpful to use the name & date modified arrows, making it easier to find most recent profiles.
Once a previous profile is loaded in and applied, use the color picker tool. The Color Picker tool is found on the tool bar above the working image or using use the White Balance tab on the panel to the right. Choose “Pick”.
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We are only interested in using a specific gray with the color picker tool. In Only one square on the Color Checker is used for in this application. Referring to the image above, the gray we want is residing two squares above the black is the color to use. Use this gray for every profile you make.When finished, be sure to choose . Choose the hand icon to return to normal cursor mode.
2.13 Adjust exposure & saturation
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Now, we navigate into the Exposure tab. This is the only tab we will work used in preprocessing, aside from the tab to access the Color Picker. There are only a few helpful settings to toggle here.
Our The goal is to create an image that looks most closely like a real-life view of these plants. Our eyes are The human eye is the most accurate check, but it can be helpful to keep an eye on reference the color graph in located on the top left that of the scree. It shifts when settings are changed. A good rule of thumb is for the peak of the three curves to land near this region of the graph.
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*Laptop screens and Monitor settings will impact what we are working onperception of images. Try to always use the same screen when creating color profiles.
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