Atbash decoded the text as
A black cat crossing your path signifies that animal is going somewhere
Aside from being a quote by Groucho Marx it doesn’t mean much but…
What about the image itself. Playing with levels we can now see that the cat is made of multiple colours

The key to solving the puzzle is to get the Hex values of the different colours using the original image
Starting from the head you should get
060306 |
060709 |
060e07 |
030603 |
060b06 |
0c0302 |
060306 |
080601 |
060f07 |
030306 |
From these values remove all the 0 and make pairs
63 66 79 6e 73 63 6b 6c 32 63 68 61 6f 73 36
Convert hex to Ascii
cfynsckl2chaos6