Photo manipulation is daily work for me. My job involves sizing and optimizing images for the web, and print. I am handy with Adobe Photoshop. That is not to say that I am a good photographer. I started using 35mm film SLR when I was a kid. My Grandfather tried to teach me about his retirement-passion amateur photography. So, I am familiar with some of the concepts of this assignment. I use a Canon EO5 at work. I purchased an iPhone just last year when I moved to Dillingham. I have amused myself a little with the native camera app. So, the charge to take six different quality photographs is perhaps the more challenging facet of this assignment.
The photo was taken with Canon EO5 Digital Rebel XSi camera; the lens is EF-S 18-55 on a tripod. Original image dimensions 4272 x 2848 at 72 ppi., exposure speed 1/6 second, aperture f/9 with the default ISO of 400.
I was surprised that the picture was at 72 ppi and that caused me to optimize this image for web use. It also caused me to explore the camera setting to adjust the pixels per inch setting. (And I learned that that setting was not a camera setting but a Photoshop setting.) I cropped the image for composition. I changed the RGB levels individually just shaving off the high and low end of the histogram leaving as much data as possible. I then adjusted the curves selecting Brightness and Contrast for this image. Finally I “saved for the web” this involved resizing the image to 600×450 and changing the quality to medium at 512k (I use 512k as my default for rural Alaska) this gave me a file size of 17.1kb for speedy web browsing.
Getting this image was an iterative process I tried to frame it with the camera as opposed to relying on Photoshop for cropping. However, in Photoshop I selected the 5×7 crop and the Golden Spiral layout after seeing the plant leaves flowing to the KDLG logo. I had to turn the plant to emphasize that flow. I then experimented with shutter speed and aperture to see if I could distinguish any depth of field differences.
The photo was taken with Canon EO5 Digital Rebel XSi camera; the lens is EF-S 18-55 on a tripod. Original image dimensions 4272 x 2848 at 72 ppi. For the first version, I set exposure speed .8 second, aperture f/8 with the default ISO of 400. For the second version, I adjusted the shutter speed 1/5 second and aperture f/4.5 and ISO 400 because I wanted to see the effect on depth of field (meh). I cropped the images for composition. I changed the RGB levels individually just shaving off the high and low end of the histogram leaving as much data as possible. I then adjusted the curves selecting Dark & Light and the snap to neutral mid-tones for this image. Finally I “saved for the web” this involved resizing the images to 600×428 and adjusting the quality to medium this gave me a file size of 25kb, and 22kb respectively.
Because the point of an assignment is to learn something I decided to install the Camera! the app on my iPhone and see what that was about. On installing it, I learned that it wasn’t updated for the operating system on my phone. The one bug I’ve found so far is being unable to delete images. The app offers some interesting features over the native camera app. The effects, and some photo framing guides I was quick to discover. I am amused to use a phone to create a print quality image, so I offer this potted plant.
I used an Apple iPhone 5SE shutter speed of 1/40 second, aperture setting f2.2 and an ISO 25, with a forced flash. Original image dimensions 2417×3912, 1.54 MB. I selected the “Roadtrip” fx setting in the app. I messed around with it in Photoshop to size 1200×1942 and adjusted it (if I left it at 2417×3912 at 300ppi the file would have been 27MB). This file is pretty large for the web at 7MB and the wrong format .tif to preview, but you can download it from the link I set the resolution at 300ppi so it will print nicely.
I used an Apple iPhone 5SE shutter speed of 1/60 second, aperture setting f2.2 and an ISO 25, with a forced flash. Original image dimensions 3042×4032, 1.23 MB. I selected the “Roman Holiday” fx setting in the app. I messed around with it in Photoshop to size 1200×1600 and adjusted curves and levels. This file is pretty large for the web at 5.5MB and the wrong format .tif to preview, but you can download it from the link I set the resolution at 300ppi so it will print nicely.
Monitor images intended for display on a monitor perhaps as a desktop image.
Both of these images were taken with my iPhone and accordingly the f/2.2 and exposure were 1/2000 with an ISO of 25. Both were modified in Photoshop. The one called Dillingham Panorama I used the healing tool to work power lines out of the image. I adjusted levels and curves and sized for monitor desktop. The sunrise image I adjusted levels and curves. Weirdly the camera meta-information doesn’t display with that image. I am not sure what that is about. However, it is within parameters normal to an iPhone.
A quick and dirty review of one of our required readings. This useful but slightly dated article explains Braddeley’s Working Memory Model the authors then do an extensive literature review it appears both of research they then connect that model with learning theory starting specifically with multimedia learning. The literature review is extensive. They conclude: “Accordingly, we can conclude based on this review that working memory, by and large, is working during learning from text and pictures in the way one would expect it based on Baddeley’s model.” They also point out some inconsistencies between the theory and the way the model has been used in research. Accordingly, because the theory seems to be holding up they suggest several methods for more precise use of the model in future research.
While this is a very technical review article it puts me in mind of the text for my other course this term, Making it Stick. One point those authors regards the importance of retrieval of information/knowledge/skill in their definition of “learning.” In Schuler’s article, we learn about different memory channels, verbal and visual (for a quick and dirty summary) and they indicate that working two different channels doesn’t seem to overload adding to memory. However, reading (translating character’s to verbal, and visual, a picture) may compete for the same channel. Perhaps, rather than writing about an image speaking about it is better for embedding both image and thoughts about the image?
References
Brown, P.C., H.L. Roedinger, M.A. McDaniel (2014). Make it stick: the science of successful learning. Cambridge, Massachusetts: The Belknap Press of Harvard University Press
Schüler, A., Scheiter, K., & Genuchten, E. (2011). The Role of Working Memory in Multimedia Instruction: Is Working Memory Working During Learning from Text and Pictures?. Educational Psychology Review, 23(3), 389-411. doi:10.1007/s10648-011-9168-5