A video processing device comprising: a buffer operable to store frame image data for a plurality of video frames; a luminance component operable to generate a first luminance value corresponding to a first frame image data from the buffered frame image data, and to generate a second luminance value corresponding to a second frame image data from the buffered frame image data, wherein the first frame image data is for a first frame and the second frame image data is for a second frame previous to and not immediately preceding the first frame; a maximum threshold component operable to generate a maximum indicator signal when the difference between the second luminance value and the first luminance value is greater than a maximum positive threshold value, wherein the difference between the second luminance value and the first luminance value being greater than the maximum positive threshold value indicates the start of a potential strobe; a minimum threshold component operable to generate a minimum indicator signal when the difference between the second luminance value and the first luminance value is less than a minimum negative threshold value, wherein the difference between the second luminance value and the first luminance value being less than the minimum negative threshold value indicates the end of a potential strobe; and a flagging component operable to generate a flagged signal based on a counter value and one of the maximum indicator signal and the minimum indicator signal, thereby to indicate whether or not the plurality of video frames contain a potential strobe, wherein the video processing device is operable to: after the start of a potential strobe is indicated, continually analyze subsequent frames of the plurality of video frames, and increment the counter value, until a luminance difference between two subsequent first and second frames of the plurality of video frames is less than the minimum negative threshold value, or until the counter value exceeds a maximum threshold, and wherein the luminance value for a frame containing a potential strobe is larger than a predetermined threshold value. a buffer operable to store frame image data for a plurality of video frames; a luminance component operable to generate a first luminance value corresponding to a first frame image data from the buffered frame image data, and to generate a second luminance value corresponding to a second frame image data from the buffered frame image data, wherein the first frame image data is for a first frame and the second frame image data is for a second frame previous to and not immediately preceding the first frame; a maximum threshold component operable to generate a maximum indicator signal when the difference between the second luminance value and the first luminance value is greater than a maximum positive threshold value, wherein the difference between the second luminance value and the first luminance value being greater than the maximum positive threshold value indicates the start of a potential strobe; a minimum threshold component operable to generate a minimum indicator signal when the difference between the second luminance value and the first luminance value is less than a minimum negative threshold value, wherein the difference between the second luminance value and the first luminance value being less than the minimum negative threshold value indicates the end of a potential strobe; and a flagging component operable to generate a flagged signal based on a counter value and one of the maximum indicator signal and the minimum indicator signal, thereby to indicate whether or not the plurality of video frames contain a potential strobe, wherein the video processing device is operable to: after the start of a potential strobe is indicated, continually analyze subsequent frames of the plurality of video frames, and increment the counter value, until a luminance difference between two subsequent first and second frames of the plurality of video frames is less than the minimum negative threshold value, or until the counter value exceeds a maximum threshold, and wherein the luminance value for a frame containing a potential strobe is larger than a predetermined threshold value. after the start of a potential strobe is indicated, continually analyze subsequent frames of the plurality of video frames, and increment the counter value, until a luminance difference between two subsequent first and second frames of the plurality of video frames is less than the minimum negative threshold value, or until the counter value exceeds a maximum threshold, and wherein the luminance value for a frame containing a potential strobe is larger than a predetermined threshold value.