1. A method for processing an image comprising: using a processor and memory for dividing the image into a plurality of areas; using the processor and memory for modifying at least one of a tone curve and a histogram of each area, the modifying of the tone curve of each area comprising determining a first set of pixels corresponding to underexposed parts of each area and a second set of pixels corresponding to overexposed parts of each area, determining a first monitoring point representative of a mean value of the first set of pixels, determining a second monitoring point representative of a mean value of the second set of pixels, and making the tone curve tend towards a curve as a function of the first and second monitoring points; and using the processor and memory for smoothing joints between adjacent areas in the image.