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2. High Capacity Color Barcode - Wikipedia

   en.wikipedia.org/wiki/High_Capacity_Color_Barcode

   An example of a High Capacity Color Barcode: a Microsoft Tag referring to the HCCB article on the English Wikipedia. High Capacity Color Barcode (HCCB) is a technology developed by Microsoft for encoding data in a 2D "barcode" using clusters of colored triangles instead of the square pixels conventionally associated with 2D barcodes or QR codes. [1]

3. Code 128 - Wikipedia

   en.wikipedia.org/wiki/Code_128

   Python Bar Code 128 – This code appears to draw boxes one pixel wide. It appears it was modified from a short line long line bar code which would have drawn lines. The "Black boxes" should be the same size as the "White Boxes". GenCode128 – Free C# source code implementation of Code128. Almost all features are implemented, but is not 100% ...

4. Codabar - Wikipedia

   en.wikipedia.org/wiki/Codabar

   Each can be either narrow (binary value 0) or wide (binary value 1). The width ratio between narrow and wide can be chosen between 1:2.25 and 1:3. The minimum narrow width varies with the specification, with the smallest being 0.0065 inches (0.165 mm), allowing 11 digits per inch to be encoded. [6]

5. Barcode - Wikipedia

   en.wikipedia.org/wiki/Barcode

   A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines.

6. Rectangular Micro QR Code - Wikipedia

   en.wikipedia.org/wiki/Rectangular_Micro_QR_Code

   Main finder pattern is used to detect the barcode on image and its corruption can make barcode unrecognizable. Finder pattern has vertical and horizontal size 1-1-3-1-1. Finder sub pattern helps to detect bottom-right corner of the barcode. Finder sub pattern does not have guard zone and has vertical and horizontal size 1-1-1-1-1.

7. Aztec Code - Wikipedia

   en.wikipedia.org/wiki/Aztec_Code

   The central bull's-eye is 9×9 or 13×13 pixels, and one row of pixels around that encodes basic coding parameters, producing a "core" of 11×11 or 15×15 squares. Data is added in "layers", each one containing two rings of pixels, giving total sizes of 15×15, 19×19, 23×23, etc.