Image display system

1. An image display system comprising:

an image processing means which separately carries out a dynamic range compression processing and a plurality of other predetermined image processings on an original image data;

an image display means which displays a dynamic-range-compressed image on the basis of image data obtained by carrying out the dynamic range compression processing on the original image data and a plurality of otherwise-processed images on the basis of a plurality of pieces of image data obtained by carrying out said other predetermined image processings on the original image data;

an operating means for taking a switching action representing a demand for switching images displayed by the image display means; and

a control means which causes the image display means to display an otherwise-processed image on the basis of image data which is obtained by carrying out said other predetermined image processing on the same original image data as the original image data of the dynamic-range-compressed image which is displayed by the image display means upon the switching action by the operating means, wherein the control means causes the image display means to display a plurality of dynamic-range-compressed images on one screen and the switching action is an action of selecting one of the dynamic-range-compressed images, the control means being further arranged to cause the image display means to display a plurality of otherwise-processed images on the basis of a plurality of pieces of image data which are obtained by carrying out said other predetermined image processings on the same original image data as the original image data of the selected dynamic-range-compressed image.

2. An image display system as defined in claim 1 in which the original image data is image data representing a plurality of cross-sections of an object.

3. An image display system as defined in claim 2 in which the control means causes the image display means to display a plurality of dynamic-range-compressed images one by one and to display a plurality of said otherwise-processed images in place of the dynamic-range-compressed image upon the switching action by the operating means.

4. An image display system as defined in claim 2 in which the control means causes the image display means to display a plurality of dynamic-range-compressed images one by one and to display a plurality of said otherwise-processed images together with the dynamic-range-compressed image upon the switching action by the operating means.

5. An image display system as defined in claim 2 in which the control means causes the image display means to display a plurality of dynamic-range-compressed images on one screen and the switching action is an action of selecting one of the dynamic-range-compressed images, the control means being further arranged to cause the image display means to display a plurality of otherwise-processed images on the basis of a plurality of pieces of image data which are obtained by carrying out said other predetermined image processings on the same original image data as the original image data of the selected dynamic-range-compressed image.

6. An image display system as defined in claim 1 in which the control means causes the image display means to display a plurality of dynamic-range-compressed images one by one and to display a plurality of said otherwise-processed images in place of the dynamic-range-compressed image upon the switching action by the operating means.

7. An image display system as defined in claim 1 in which the control means causes the image display means to display a plurality of dynamic-range-compressed images one by one and to display a plurality of said otherwise-processed images together with the dynamic-range-compressed image upon the switching action by the operating means.