Hi, glad to hear that you managed to replace the sample pictures.
Coming to your new questions:
- using the Local Contrast Enhancement (LCE) procedure may help, but there is no general way of predicting this, other than making a quick test on one or two of your pictures and see if you can get at least an extra star in your rating.
- another possiblity would be to attach a small Frame Marker next to the museum assets; Frame Markers can be recognized very easily, do not need to be pre-processed or uploaded to the Target Manager and you can use up to 512 of them (which could be sufficient in the Museum case):
- a third alternative could be to add a small Image Target next to the actual Museum asset (for example, typically each Museum asset, be it a picture or a sculpture or other) have a small notice / label explaining that asset; if you could manage to embed a small custom picture (with high rating) in that label, you could potentially augment that.
I don;t know if this answers your questions fully, but these are possible ideas to explore.