[BUG]New models `cpdino` and `cpdino-vitb` don't work with 4.2.1.1

[JensWendt]

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Describe the bug

Following the solution for my issue #1475 I updated to 4.2.1.1 and decided to try out the advertised new models.
When selecting cpdino or cpdino-vitb in the GUI, it downloads them correctly but then throws the errors:
ERROR: name 'dinov3_vitb16' is not defined
ERROR: name 'dinov3_vitl16' is not defined
respectively.

To Reproduce

Steps to reproduce the behavior:

1. install v4.2.1.1
2. open GUI
3. select cpdino or cpdino-vitb as model
4. load a simple 1 channel 16bit 2D image
5. hit RUN

Run log

(cellpose) C:\Users\MiN_Acc2>cellpose --verbose

[GUI INFO] : WRITING LOG OUTPUT TO C:\Users\MiN_Acc2\.cellpose\run.log

cellpose version:       4.2.1.1
platform:               win32
python version:         3.11.15
torch version:          2.7.1
2026-06-17 12:35:22,931 [io INFO] WRITING LOG OUTPUT TO C:\Users\MiN_Acc2\.cellpose\run.log
2026-06-17 12:35:22,932 [io INFO]
cellpose version:       4.2.1.1
platform:               win32
python version:         3.11.15
torch version:          2.7.1
2026-06-17 12:35:23,543 [core INFO] ** TORCH CUDA version installed and working. **
GUI_INFO: loading image: C:/Users/MiN_Acc2/Desktop/blobs.tif
2026-06-17 12:35:54,826 [io INFO]  : image shape: (254, 256, 1)
(1, 254, 256, 1)
{'lowhigh': None, 'percentile': [1.0, 99.0], 'normalize': True, 'norm3D': True, 'sharpen_radius': 0.0, 'smooth_radius': 0.0, 'tile_norm_blocksize': 0.0, 'tile_norm_smooth3D': 0.0, 'invert': False}
GUI_INFO: selected model cpdino
2026-06-17 12:36:03,745 [core INFO] ** TORCH CUDA version installed and working. **
2026-06-17 12:36:03,746 [core INFO] >>>> using GPU (CUDA)
ERROR: name 'dinov3_vitl16' is not defined
GUI_INFO: selected model cpdino-vitb
2026-06-17 12:36:09,269 [core INFO] ** TORCH CUDA version installed and working. **
2026-06-17 12:36:09,269 [core INFO] >>>> using GPU (CUDA)
ERROR: name 'dinov3_vitb16' is not defined

[sebmathbio]

Possible duplication of #1474. I followed the solution as described by the reply here: #1474 (comment) and it worked for me. I was implementing cellpose in the QuPath extension and getting the same output before a "Cannot invoke "ij.ImagePlus.getProcessor()" because "label_imp" is null error in the log.

[helengracehuang]

Same issue here. @sebmathbio 's solution works but it would be ideal to have a more automatic install situation.

[DarioS]

The cell segmentation looks awful, though. Many dropped tiles are evident.