In my case, it was because the images I used were stored on a Mac, which generates many hidden files like .image_file.png, so they turned out to not even be the actual images I needed and I could safely ignore the warning or delete the hidden files. It was just an oversight in my case.
For me it was fixed by downloading the image data set I was using again (in fact I forwarded the copy I had locally using vs-code's SFTP). Here is the jupyter notebook I used (in vscode) with it's output:
I was processing images uploaded through multipart/form-data using AWS API Gateway. When I was uploading my images, that had not been giving this error locally, I was observing UnidentifiedImageError exception thrown by PIL when loading uploaded image. In order to fix this error I had to add multipart/form-data within settings of service.
Many of the scans of photos taken during the missions were done from the original film. These scans are being done by NASA Johnson, with some post-processing by Kipp Teague. The film is scanned at 4096 x 4096 pixels per image. (See a discussion from Arizona State University about the scanning process.) Kipp reduced each digital image to approximately 2350 x 2350 pixels (equivalent to 300 dpi) and did minor adjustments of levels to ensure that (1) brightly lit areas of lunar soil were neutral grey, (2) objects with known colors (such as the CDR stripes or the LCRU blankets) looked right, and (3) information in bright or dark areas was not lost. These images from original film are indicated by the notation 'OF300' in the image description. In each case, a 900 x 900 pixel version is also provided.
Anaglyphs in the image libraries created from sequential panorama frames by the ALSJ editor exist only because of Yuri Krasilnikov's willingness to teach me the art. Whatever value the anaglyphs have is due to Yuri's insights and guidance. Flaws are my doing. Briefly, panorama stitching freeware Hugin is used to create both non-stereo pan assemblies and remapped versions of the images. The latter are then made into anaglyphs using GIMP. The individual remapped images are linked from the corresponding Library entries for the original frames. The remapped images can be used to create stereo views using other methods.
This Apollo 11 Image Library contains all of the pictures taken on the lunar surface by the astronauts together with pictures from pre-flight training and pictures of equipment and the flight hardware. High-resolution version of all the lunar surface images are included. A source for both thumbnail and low -resolution versions of the lunar surface images is a website compiled by Paul Spudis and colleagues at the Lunar and Planetary Institute in Houston.
Journal Contributor Paul White has made detailed comparisons of cloud patterns seen in a large number of Apollo images with imagery taken at close to the same time by various meteorlogical satellites.
On 14 January 2009, five months before LRO was launched, Journal Contributor Scott Cruickshank made use of AS11-40-5961, the last of Neil's photos taken from the rim of Little West Crater, and AS11-40-5962, which he took on the way back to the LM, to correct errors in existing maps of the routes Neil took to and from Little West. Cruickshank's result is very similar to the routes revealed by LROC images. Deconvolved, 0.50 m/pixel (4.0 Mb TIF) and 1.0 m/pixel (4.0 Mb TIF) versions by GoneToPlaid.
Note that Farwell's construction involves a certain amount of artistic license because neither Neil or Buzz actually had an unrestricted view from side to side, as shown by pans assembled from Magazine 39/Q images for the CDR window and the LMP window.
A high-resolution version ( 3.5 Mb ) has been done by Eric Jones. The fresh, sharp-rimmed crater beyond and just to the right of the TV camera has been identified in the 8 August 2009 LRO image ( 0.2 Mb of the landing site and is also visible in an anaglyph ( 280k ) made by Yuri Krasilnikov from frames AS11-40-5855 and 56 from Pan 1. The TV camera is about 20 m from Buzz, while the fresh crater is about 70 m away. See, also, a labeled version of the pan and a similarly labelled, animated gif made from the three 2009 LROC images, both by Vlad Pustynski. The LROC have been stretched to correct for E-W foreshortening.
Journal Contributor Rene Cantin notes that astronaut Bill Pogue is standing between Dake Slayton and Alan Shepard to the right of center in the second row. One of the few women is the photo is JoAnn Morgan, an Instrument Controller, monitoring the launch pad before vehicle control was transferred to Houston. Morgan is seated to the left of center in the third row. She is mentioned in the book \"Apollo Moon Mission - The Unsung Heroes\" by Billy Watkins. She retired in 2003, after a distinguished, 45-year career at the Kennedy Space Center. Mission Support Photos S69-39601 ( 114k or 301k ) CapCom Charlie Duke (left), backup Commander Jim Lovell (next right), and backup Lunar Module Pilot Fred Haise (next to Lovell) in the MOCR during the Apollo 11 landing. Scan by Kipp Teague. S69-39590 ( 75k or 655k ) Dave Scott in the MOCR during Apollo 11. 20 July 1969. Scan by Ed Hengeveld. S69-3722 ( 380k ) Spacecraft dynamics during lunar touchdown - various graphs. S69-38600 ( 168k ) This photo shows the Apollo 12 LM crew, Pete Conrad and Al Bean, and, behind them, their backups, Dave Scott (behind Al) and Jim Irwin, monitoring Apollo 11 activities after the landing. Journal Contributors John Saxon and Colin Mackellar have provided a collection of 17 images taken off the monitor at NASA's Honeysuckle Creek Tracking Station near Canberra, Australia. Those images are of much higher quality than what was being seen in the Mission Operations Control Room in Houston or by the global television audience. S69-39815 ( 114k or 559k )
Beginning in 2004, NASA began to provide scans from original film and, as they become available to the ALSJ, we are using them to replace all prior versions. These are presented at 300 dpi equivalent and are labeled \"OF300\". See a discussion from Arizona State University about the scanning process used on the original film. Some images are currently available only as low-resolution scans provided by NASA Johnson in the mid-1990s. The individual scans have TARGA filenames. Markus Mehring has compiled cross-references between those filenames and the NASA photo ID designations customarily used. Other images are available as higher resolution scans from prints and, unless otherwise credited, were provided by Kipp Teague. Magazine 36/N (Color) Frames 5291-5432
AS11-36-5291 (OF300) ( 78k or 822k ) 001:09:21 Neil Armstrong in the Command Module. From the Apollo 11 Flight Journal: About now, Buzz turns to his left and takes a somewhat blurred color photo of Neil with the Hasselblad camera, AS11-36-5291. Then he turns towards Mike and photographs him also, AS11-36-5292. Mike is seen holding the TV camera which they have just been discussing. AS11-36-5292 (OF300) ( 175k or 1.9 Mb ) 001:09:21 Michael Collins in the Command Module. From the Apollo 11 Flight Journal: About now, Buzz turns to his left and takes a somewhat blurred color photo of Neil with the Hasselblad camera, AS11-36-5291. Then he turns towards Mike and photographs him also, AS11-36-5292. Mike is seen holding the TV camera which they have just been discussing. AS11-36-5293 (OF300) ( 87k or 869k ) 001:25:10 View of Earth from orbit. From the Apollo 11 Flight Journal: \"About now, Collins takes photo number AS11-36-5293 of the cloud-speckled Earth, looking east towards the Sun. Having lost the camera 5 minutes earlier, he has missed a sunrise photo, but he captures the glaring sun in the sky above the ocean, rising rapidly as a result of their orbital motion. He takes a further 8 photos at this point, through to AS11-36-5301. AS11-36-5298 is the best one showing the low pressure cell.\" AS11-36-5294 (OF300) ( 160k or 2.1 Mb ) 001:25:10 View of Earth from orbit. Journal Contributor Paul White has made detailed comparisons of cloud patterns seen in a large number of Apollo images with imagery taken at close to the same time by various meteorlogical satellites. AS11-36-5295 (OF300) ( 158k or 1.2 Mb ) 001:25:10 View of Earth from orbit. AS11-36-5296 (OF300) ( 200k or 1.4 Mb ) 001:25:10 View of Earth from orbit. AS11-36-5297 (OF300) ( 161k or 1.3 Mb ) 001:25:10 View of Earth from orbit. AS11-36-5298 (OF300) ( 195k or 1.45 Mb ) 001:25:10 View of Earth from orbit. AS11-36-5299 (OF300) ( 133k or 1.17 Mb ) 001:25:10 View of Earth from orbit. AS11-36-5300 (OF300) ( 202k or 1.45 Mb ) 001:25:10 View of Earth from orbit. Baja Penninsula, San Ignacio Lagoon, Bellenas Bay. AS11-36-5301 (OF300) ( 162k or 1.2 Mb ) 001:25:10 View of Earth from orbit. El Aguajito, Santa Ana, Gulf of California. AS11-36-5302 (OF300) ( 166k or 1.18 Mb ) View of Earth from orbit. Mexico. AS11-36-5303 (OF300) ( 161k or 1.19 Mb ) View of Earth from orbit. Mexico. AS11-36-5304 (OF300) ( 158k or 1.18 Mb ) View of Earth from orbit. Mexico. AS11-36-5305 (OF300) ( 228k or 1.45 Mb ) View of Earth from orbit. South America. AS11-36-5306 (OF300) ( 259k or 1.7 Mb ) View of Earth from orbit. Baja Penninsula. AS11-36-5307 (OF300) ( 173k or 1.18 Mb ) View of Earth from orbit. Baja Penninsula. AS11-36-5308 (OF300) ( 257k or 1.7 Mb ) View of Earth from orbit. Baja Penninsula. AS11-36-5309 (OF300) ( 147k or 1.1 Mb ) View of Earth from orbit. AS11-36-5310 (OF300) ( 28k or 511k ) 003:21:32 Transposition and docking. From the Apollo 11 Flight Journal: \"As the CSM approaches the LM, Buzz uses the Hasselblad camera to take seven shots. AS11-36-5310, 5311 and 5312 are relatively distant shots. A constellation of particles surround the spent stage. Frame 5313 is a well-framed shot of the top of the LM. 5314, 5315 and 5316 were taken at the final stages of the approach. On the last frame, the external orifice of the LMs optical system is visible top-right, while the overhead docking window is vi