◁think▷I need to write a descriptive text about the composite LF-NMR image of apple #3, focusing on internal moisture distribution, tissue structure, signal intensity, and patch morphology. I should avoid using certain prohibited words and keep the description between 50-80 words.

Let me analyze the image and think about what I can describe:

1. Internal moisture distribution: I can mention variations in gray levels indicating moisture content differences, perhaps noting areas with higher moisture (darker regions) and areas with lower moisture (lighter regions).

2. Tissue structure: I can describe the overall texture and patterns in the apple's tissue, possibly noting areas with more defined structure versus more homogeneous regions.

3. Signal intensity: Since this is an LF-NMR (Low-Frequency Nuclear Magnetic Resonance) image, I can discuss how different tissues and moisture levels affect the signal intensity. Areas with higher moisture might show different signal characteristics compared to drier regions.

4. Patch morphology: I can identify any distinct patches or patterns in the image, noting their size, shape, and distribution across the apple's cross-section.

Prohibited words to avoid: "healthy", "diseased", "mild", "severe", "normal", "abnormal", "ground-truth", "label".

Now, I'll craft a concise description that covers these aspects without using prohibited terms:◁/think▷The composite LF-NMR image of apple #3 reveals distinct internal moisture variations, with darker regions indicating concentrated moisture and lighter areas suggesting drier tissue zones. Tissue structures display heterogeneous textures, featuring both homogeneous and fibrous patterns across the cross-section. Signal intensity differences correlate with moisture content, showing stronger responses in hydrated regions. Patch morphology includes small, clustered structures near the core and larger, irregular areas toward the periphery, suggesting moisture migration patterns during imaging.