Method for viewing an anomaly comprised in an image comprising a plurality of components and representative of an optical field, the method comprising: obtaining an image in which each component corresponds to the same acquisition time and is representative of a spectral band of a plurality of spectral bands continuously covering a spectral domain comprising said wavelength range; applying a contrast-accentuating procedure to a first window corresponding to a sub-portion of the image comprising the anomaly, the contrast-accentuating procedure comprising: defining (430, 431) in the first window a first mask suitable for containing pixels of the image corresponding to the anomaly and a second mask suitable for containing pixels of the image not corresponding to the anomaly; and, determining a vector representative of a Fisher-projection direction allowing a contrast between the pixels of the first and second masks to be accentuated, and applying a projection along said vector to the first window in order to obtain a second window; characterized in that the anomaly is a laser spot produced by a laser device and having a wavelength taking values in a wavelength range dependent on operating temperatures of the laser device, the image is multispectral, and in that the method comprises: if the laser spot appears in the second window, selecting a first spectral band providing the best contrast between the pixels of the first and second masks using at least one result of the contrast-accentuating procedure, the selected spectral band corresponding to one of the coordinates of the vector representative of the Fisher-projection direction having a value higher than the other coordinate values, and forming a third window from a component of the first window corresponding to the selected first spectral band; generating an image allowing the laser spot to be viewed by inserting the third window at a position corresponding to the first window in a receptor image representative of the optical field. obtaining an image in which each component corresponds to the same acquisition time and is representative of a spectral band of a plurality of spectral bands continuously covering a spectral domain comprising said wavelength range; applying a contrast-accentuating procedure to a first window corresponding to a sub-portion of the image comprising the anomaly, the contrast-accentuating procedure comprising: defining (430, 431) in the first window a first mask suitable for containing pixels of the image corresponding to the anomaly and a second mask suitable for containing pixels of the image not corresponding to the anomaly; and, determining a vector representative of a Fisher-projection direction allowing a contrast between the pixels of the first and second masks to be accentuated, and applying a projection along said vector to the first window in order to obtain a second window; defining (430, 431) in the first window a first mask suitable for containing pixels of the image corresponding to the anomaly and a second mask suitable for containing pixels of the image not corresponding to the anomaly; and, determining a vector representative of a Fisher-projection direction allowing a contrast between the pixels of the first and second masks to be accentuated, and applying a projection along said vector to the first window in order to obtain a second window; characterized in that the anomaly is a laser spot produced by a laser device and having a wavelength taking values in a wavelength range dependent on operating temperatures of the laser device, the image is multispectral, and in that the method comprises: if the laser spot appears in the second window, selecting a first spectral band providing the best contrast between the pixels of the first and second masks using at least one result of the contrast-accentuating procedure, the selected spectral band corresponding to one of the coordinates of the vector representative of the Fisher-projection direction having a value higher than the other coordinate values, and forming a third window from a component of the first window corresponding to the selected first spectral band; generating an image allowing the laser spot to be viewed by inserting the third window at a position corresponding to the first window in a receptor image representative of the optical field.