Aspect Ratio (--ar
)
The --ar
parameter offers flexibility in setting the desired aspect ratio for your image generations. Not all images need to be square; the aspect ratio lets you dictate the dimensions.
Supported aspect ratios include:
Supported Aspect Ratios
SD1.5 models:
1:1
,2:1
,3:2
,4:3
,5:3
,5:4
,16:9
- Portrait Versions:
1:2
,2:3
,3:4
,3:5
,4:5
,9:16
SDXL models:
1:1
,8:5
,4:3
,3:2
,7:5
,16:9
,21:9
,19:9
- Portrait Versions:
5:8
,3:4
,2:3
,5:7
,9:16
,9:21
,9:19
Note
Users can specify any desired aspect ratio using the format width:height
(e.g., --ar 9:16
). If an unsupported ratio is provided, the system will approximate to the nearest supported one.
You can combine the --ar
parameter with other parameters for more tailored results.
Practical Example
Let's see this in action using our earlier bartender example.
Starting Image Prompt:
Modifying with 9:16 Aspect Ratio:
We can see that the new image got a new aspect ratio as expected:Note
Aspect ratio also changes the image composition quite a bit
Finally, let's see what happens if we input unsupported 27:18 Ratio:
The aspect ratio got autocorrected to 3:2. And the final image with the adjusted ratio is as follows: