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docs: revert
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zanicar committed Apr 29, 2021
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Showing 1 changed file with 14 additions and 14 deletions.
28 changes: 14 additions & 14 deletions png/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -85,20 +85,20 @@ Here is how we do it:
| a | 97 | 0110 0001 |
| t | 116 | 0111 0100 |

| Pixel | Hex | Dec | Surface | | Data | Concealed | Dec | Hex |
| :---- | --: | --: | :-------- | - | :-------------- | :-------------- | --: | --: |
| 1:R | 83 | 131 | 1000 0011 | C | 0100 00**[11]** | 1000 00**[11]** | 131 | 83 |
| 1:G | 19 | 25 | 0001 1001 | C | 0100 **[00]**11 | 0001 10**[00]** | 24 | 18 |
| 1:B | 19 | 25 | 0001 1001 | C | 01**[00]** 0011 | 0001 10**[00]** | 24 | 18 |
| 2:R | 77 | 119 | 0111 0111 | C | **[01]**00 0011 | 0111 01**[01]** | 117 | 75 |
| 2:G | ab | 171 | 1010 1011 | a | 0110 00**[01]** | 1010 10**[01]** | 169 | a9 |
| 2:B | 59 | 89 | 0101 1001 | a | 0110 **[00]**01 | 0101 10**[00]** | 88 | 58 |
| 3:R | 00 | 0 | 0000 0000 | a | 01**[10]** 0001 | 0000 00**[10]** | 2 | 02 |
| 3:G | 72 | 114 | 0111 0010 | a | **[01]**10 0001 | 0111 00**[01]** | 113 | 71 |
| 3:B | fa | 250 | 1111 1010 | t | 0111 01**[00]** | 1111 10**[00]** | 248 | f8 |
| 4:R | eb | 235 | 1110 1011 | t | 0111 **[01]**00 | 1110 10**[01]** | 233 | e9 |
| 4:G | 7d | 125 | 0111 1101 | t | 01**[11]** 0100 | 0111 11**[11]** | 127 | 7f |
| 4:B | 46 | 70 | 0100 0110 | t | **[01]**11 0100 | 0100 01**[01]** | 69 | 45 |
| Pixel | Hex | Dec | Surface | | Data | Concealed | Dec | Hex |
| :---- | --: | --: | :-------- | - | :------------ | :------------ | --: | --: |
| 1:R | 83 | 131 | 1000 0011 | C | 0100 00**11** | 1000 00**11** | 131 | 83 |
| 1:G | 19 | 25 | 0001 1001 | C | 0100 **00**11 | 0001 10**00** | 24 | 18 |
| 1:B | 19 | 25 | 0001 1001 | C | 01**00** 0011 | 0001 10**00** | 24 | 18 |
| 2:R | 77 | 119 | 0111 0111 | C | **01**00 0011 | 0111 01**01** | 117 | 75 |
| 2:G | ab | 171 | 1010 1011 | a | 0110 00**01** | 1010 10**01** | 169 | a9 |
| 2:B | 59 | 89 | 0101 1001 | a | 0110 **00**01 | 0101 10**00** | 88 | 58 |
| 3:R | 00 | 0 | 0000 0000 | a | 01**10** 0001 | 0000 00**10** | 2 | 02 |
| 3:G | 72 | 114 | 0111 0010 | a | **01**10 0001 | 0111 00**01** | 113 | 71 |
| 3:B | fa | 250 | 1111 1010 | t | 0111 01**00** | 1111 10**00** | 248 | f8 |
| 4:R | eb | 235 | 1110 1011 | t | 0111 **01**00 | 1110 10**01** | 233 | e9 |
| 4:G | 7d | 125 | 0111 1101 | t | 01**11** 0100 | 0111 11**11** | 127 | 7f |
| 4:B | 46 | 70 | 0100 0110 | t | **01**11 0100 | 0100 01**01** | 69 | 45 |

We overwrite the two least significant bits of our pixels with the bits representing our "Cat" starting from the least significant bits (right to left). We get some new color codes that are imperceptably different from what we had, but we have a "Cat" hiding in there now...

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