The Jeffrey MacDonald Case

Debunking FrmrCSI’s alleged “analysis” of the bloody footprints

 

The three pictures FrmrCSI used in his “analysis”

 

1. Cropped section from original crime scene photo
(February 17, 1970: Colette MacDonald in master bedroom) 

2. Cropped section from the same original crime scene photo, (Colette MacDonald in the master bedroom), but FrmrCSI's image processing and “enhancement” (apparently consisting only of changing the contrast, altering color balance and resizing) has resulted in degradation of quality, interpolation and anti-aliasing, and the loss of the correct aspect ratio (foot is now considerably longer than it should be).
 

3. A copy of the original crime scene photo  (18,622 bytes)
(Jeffrey MacDonald's bloody footprints in the hallway) 

FrmrCSI's image of the original, from the download link he posted, appears below
(appears the same as the original, but file size is now only 18,172 bytes)

Unfortunately, FrmrCSI’s image (directly above) has less pixel information in it than the original JPEG he started with. This is apparently due to his having again having saved this final image as a JPEG, which removed even more information from the original JPEG.  JPEG uses “lossy” data compression, meaning a loss of pixel information occurs when an image is saved in that format.  The original JPEG posted online had already lost an enormous amount of pixel information when the original BMP scan was resized and saved as a JPEG, and when FrmrCSI saved that image again as a JPEG, even more data was lost.

The proof of this loss of data is evident when the file sizes are compared.  The original crime scene JPEG photo posted online is 18,622 bytes in size, but FrmrCSI’s image is only 18,172 bytes.
 

The Jeffrey MacDonald Case: Debunking FrmrCSI’s alleged “analysis” of the bloody footprints

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