What is this? Input an image of an IBM punch card and this with give you the binary and text data that is encoded on the card.
Step 1: Enter the URL of the punchcard image
Image URL:
Step 2: Adjust the values below so all the red lines cross exaclty in the center of each 'punch hole' (Show example image)
Left:
Columns:
Right:
Top:
Rows:
Bottom:
Step 3: Press submit and the results will be shown below
Raw output:
Data output:
Data output (inverted):
Text output (IBM code - DEC 029):
Text output (inverted)(IBM code - DEC 029):
