It turns out there's a much more ratio and resolutions to add for SDXL

[marhensa]

https://arxiv.org/abs/2307.01952

https://arxiv.org/pdf/2307.01952.pdf

[marhensa]

adding this now

    # Accepted aspect ratios and corresponding XSIZE, YSIZE, and NUMRATIO

    # Accepted aspect ratios and pixel size is derived from this SDXL paper
    # https://arxiv.org/abs/2307.01952 https://arxiv.org/pdf/2307.01952.pdf
    # Page 17 "We use the following image resolutions for mixed-aspect ratio finetuning as described in Section 2.3"
    
# Horizontal aspect ratio
accepted_ratios_horizontal = {
    "4:1": (2048, 512, 4.000000000),
    "31:8": (1984, 512, 3.875000000),
    "15:4": (1920, 512, 3.750000000),
    "29:8": (1856, 512, 3.625000000),
    "28:9": (1792, 576, 3.111111111),
    "3:1": (1728, 576, 3.000000000),
    "26:9": (1664, 576, 2.888888889),
    "5:2": (1600, 640, 2.500000000),
    "12:5": (1536, 640, 2.400000000),
    "23:11": (1472, 704, 2.090909091),
    "2:1": (1408, 704, 2.000000000),
    "21:11": (1344, 704, 1.909090909),
    "7:4": (1344, 768, 1.750000000),
    "5:3": (1280, 768, 1.666666667),
    "19:13": (1216, 832, 1.461538462),
    "18:13": (1152, 832, 1.384615385),
    "9:7": (1152, 896, 1.285714286),
    "17:14": (1088, 896, 1.214285714),
    "17:15": (1088, 960, 1.133333333),
    "16:15": (1024, 960, 1.066666667)
}

# Vertical aspect ratio
accepted_ratios_vertical = {
    "15:16": (960, 1024, 0.937500000),
    "15:17": (960, 1088, 0.882352941),
    "14:17": (896, 1088, 0.823529412),
    "7:9": (896, 1152, 0.777777778),
    "13:18": (832, 1152, 0.722222222),
    "13:19": (832, 1216, 0.684210526),
    "3:5": (768, 1280, 0.600000000),
    "4:7": (768, 1344, 0.571428571),
    "11:21": (704, 1344, 0.523809524),
    "1:2": (704, 1408, 0.500000000),
    "11:23": (704, 1472, 0.478260870),
    "5:12": (640, 1536, 0.416666667),
    "2:5": (640, 1600, 0.400000000),
    "9:26": (576, 1664, 0.346153846),
    "1:3": (576, 1728, 0.333333333),
    "9:28": (576, 1792, 0.321428571),
    "8:29": (512, 1856, 0.275862069),
    "4:15": (512, 1920, 0.266666667),
    "8:31": (512, 1984, 0.258064516),
    "1:4": (512, 2048, 0.250000000)
    }
    
# Square aspect ratio
accepted_ratios_square = {
    "1:1": (1024, 1024, 1.00000000)
}

[marhensa]

done.