Step Up Love Story Tome 1 18 [scan FR].zip ZIP 397.00M
Amancio Mccrae
These unknows must be controlled or you cannot reliably use the results from ordinary scanners to evaluate your film. I have experimented with using a scanner as you propose but have not been to produce results that match those from my densitometer. I've gotten close enough that it seems with reach but have not spent the additional time required to solve the problem. Perhaps others will suggest a solution.
Try scanning the IT8 film directly as a reference using the same settings and procedures you used for the TMX film. Since you know the density values in the monochrome steps, if your measurement and calulation methods are correct they should yield the values of the steps. If you get different values (and I suspect you will), you may possibly use them as a rough calibration reference to convert the TMX scan results to actual density values.
The chart values came from comparing and interpolating the test negative against the presumed 1/2-stop steps in the scanned IT8 gray step wedge. The IT8 calibration data contains unambiguous CIE- color values for each patch. This would be a more direct translation in Photoshop, and might try this next. (I'm giving up on manual measuring and processing. See below.)
Hi, Stephen. Aye! and verily! What can be simpler than measuring 21 spots on a negative, and plotting the values? I have a scanner and software development tools, but no densitometer. And so, I asked myself: How hard can that be? Maybe the next guy to come along will mumble to hisself: "I have a scanner and this cool software. Who needs a densitometer?" It needs doing; I'm going to do it.
I suspect that the grayscale steps on the IT8 are not uniform. I don't have one here to measure and could find no definitve answers on the web. In any case, the direct IT8 scan that you posted shows that the steps are not uniform. Whether that is due to the IT8 itself or your scanner and software remains to be determined.
While it will be possible to use an IT8 reference for B&W film testing, you will need to know the actual densities of each step. The remaining issues of scanner and software effects can then be addressed.
I too saw the data chart posted above when poking around for some info on the IT8 film. Unfortunately, as I currently understand it, the values in the chart alone do not yield density of the IT8 grayscale steps. The L value in an L-a-b triplet will also depend on gamma used in the monitor/software/scanner as will the log transmission density.
My best results from using a scanner as a densitometer were to assume zero density to be pure white on the screen, which reads 255 in Photoshop LE Level Adjust. Read it with the probe without Preview. Other densities are log (255 / probe reading). The high densities are the least precise because I can only read integers between 0 and 255.
Consult your TV or converter box owner's manual, or visit the manufacturer's website, for instructions and customer service contact information. The following chart provides step-by-step instructions for several television brands.
In our discussion after the exam, my physician mentioned that his practice was going to start scanning patients with a history of smoking or currently smoking. I said, “fine, no problem, I quit 10 years ago.” I went down to the scan area, took a number and had a seat. I went into the scan room, laid on a table that slides under a tube. The technician said to just follow the instructions the machine will tell me. Basically it was “breathe in, hold it, then breathe out.” It took 5-10 minutes and I hopped off the table and away I went. No pain or scary needles, dye in the veins or anything. Easy Peasy!
A few days later I was notified by my my doctor that the report stated I had nodules in my lungs which he explained was not unusual for a former smoker. He suggested I see a pulmonologist in case COPD or other issues arose so I would be familiar with the physician who treats those issues. I met with the pulmonologist within a couple of days. He took a complete history and we studied the scan. He saw something “ground glass” and said it was probably nothing but he would like to recheck it in 3 months. If there was no change, then again at six months. And if no change once yearly after that.
I realize that we are often times afraid of finding out something is wrong. Please don’t be. Be afraid of getting sick because the diagnosis was made too late. Lung scans save lives. I’ve told my story to everybody I know who were former smokers, I begged them to get scans. One friend found out they have lung nodules, another found out they had COPD. They found out because they were scanned and can now be proactive about their health and monitored for any changes.
I have a good outcome story. On April 27, 1994, I had a car accident. I complained about chest pain caused by the seat belt. A CAT scan was taken and several nodules were spotted. I was told to have another CAT scan in six months. I disregarded that advice but did have another 2 years late. That scan showed only one node and no growth and was told to have a scan in 6 months. Again I ignored the advice but did have another 2 years later, and it showed no growth, but was told again to have a scan in 6 months. Yet again it was 2 years later and the scan showed no growth. I had a PET scan which also showed nothing and was told by the PET scan Doc that I can forget about that nodule. My Doc now in 2002 asked me to have another scan and I called him nuts. I had 3 scans and a PET scan over 6 years and nothing, I was also not a smoker. He begged me to have just one more and I did. In 2002 and it showed nodule was growing I had surgery, a wedge resection rt. lower lobe at Mass General Hospital. I have had excellent health ever since. The lung cancer was called BAC. I am now 80 and am still having scans yearly.
In 2019, my lower left lung was removed as it had a cancerous spot. That was followed by chemotherapy. In 2023, I still have no issues getting the all-clear with each scan. But that is not the real story. You get a sympathetic look as you visit the facility for your appointment.
After your CT scan, you are able to return to your regular activities. Make a plan to meet with your doctor to discuss the results, which are typically ready within a few days. Your doctor will review the report and images, and discuss and recommend next steps, if any. You may need to repeat the CT scan within a specific time frame; however, it is possible you will be asked to go for additional testing or a procedure such as a biopsy. You can always ask for a copy of your CT scan images for your own records.
In this post, I want to explain how to use a scanner with Evernote. This has been the single biggest clutter-buster for me. No more stacks of paper sitting on my desk or credenza. Those days are history!
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