Hi. I want to make sure how imshow shows a numpy array as image.
lets say below is our numpy data array where letter represent data values
and numbers represent row/col indices.
0 1 2
0 a b c
1 d e f
2 g h i
and lets think imshow's origin is default upper left.
Now, if we show our data as an image, the orientation of visual
representation of data shouldt change,
and seen like below, right?
0 1 2
0 a b c
1 d e f
2 g h i
But if we pass origin="lower" keyword to imshow, (as in basemap by default);
is this what we expect to see ?
0 1 2
2 g h i
1 d e f
0 a b c
To be clear, does imshow with "lower" keyword value;
1-takes first row of data and put it most bottom,
2-then take second row and put it one row upper from most bottom.....etc ?
Thanks.
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