This is yet another tracking issue to help organize the work around adding optional range preservation to our API wherever input is scaled. For more context have a look at previous discussions:

• Fixes for data types and other common sources of errors #3009
• Code audit: usage of img_as_float #3373

Tracked items

Picked from section "Behaviour unchanged / totally insensitive to image magnitude" in #3373:

• Add prescale parameter to "blob functions" #7858
• Port gaussian to skimage2.filters #8069
• feature.daisy
• feature.brief
• feature.corner_orientation
• restoration.inpaint_biharmonic
• transform.warps
• transform.pyramids
• transform.seam_carving

...