Long Form Birth Certificate – Description of Layers (gsgs)

gsgs has provided some interesting analysis of the layers. Let’s first start with a description of the objects.

Note that the main jpeg has a size of  (1276 x 1652)*2 = 2552 x 3304. The actual document (8.5 by 11) has 2550 x 3300 pixels, so why the extra pixels? Jpeg compression takes 8 by 8 pixel blocks and therefor the image was padded.

There are 9 objects in total.

layer number (order in the .pdf)

  bits

    resolution

       pixel-size (rotated)

                  color values bgr

                               size when compressed

                                       description

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1 1 2    70x  34  066,086,064     173  Non

2 1 2   217x 243  235,247,240     671  lower white

3 1 2   142x 132  245,245,245     344  upper white

4 1 2  1819x1454  031,045,027   67980  main text

5 1 2   274x  42  082,088,077     480  Onaka date

6 8 1  1276x1652               299366  rest

7 1 2   216x  47  087,111,087     436  left date

8 1 2   778x 199  089,100,088    5510  Onaka 

9 1 2   228x 123  066,086,064     633  right date

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