Prepare an image before turning it into a grid

Start by deciding what must be recognizable when the pattern is small. Crop until that feature has space around it, rather than preserving the camera's original frame. A centered subject with a clean margin gives every later cell a useful job and makes the preview easier to compare at a real viewing distance.

For a bicycle, keep both wheels and the frame triangle inside the crop. Do not let a handlebar or pedal touch the edge; a one-cell edge collision can make the finished object look clipped even when the source photo felt comfortably framed.

Contrast adjustment cannot decide which edge matters. Replace a busy background with a broad color field, then make the subject and background separable without creating a harsh halo. The useful test is whether the subject remains nameable at thumbnail size, not whether the photograph looks dramatic at full resolution.

The yellow bicycle becomes easier to map when the window reflections behind it are removed. Keeping a quiet dusk field preserves the story of the light while preventing small glass highlights from becoming false spokes or extra palette roles.

Save a copy of the crop and write down the intended object, target size, and background choice. This makes a later comparison meaningful: you can tell whether a change came from the source or from the converter. Keep private source files outside analytics and public links.

Run one conversion with the documented default before exploring alternatives. If the silhouette is already broken, return to the crop. Raising the grid or adding colors should be justified by a feature the viewer can actually see, not by the availability of another control.