An image projection apparatus configured to project a full-color image, comprising: a light source configured to emit light having a light amount which is controllable according to a second light amount adjustment value (Lctrl); an optical element configured to adjust the light amount of the light emitted from the light source according to a first light amount adjustment value (Sctrl); an optical modulator configured to modulate the light passing through the optical element according to an image signal; an image signal analyzer configured to detect information on a brightness level of the image signal; and a controller (101, 108, 109, 110, 111) configured to set the first (Sctrl) and the second (Lctrl) light amount adjustment values according to a target light amount adjustment value (Actrl) based on the information on the brightness level of the image signal and to control the optical element and the light source in accordance with the first (Sctrl) and the second (Lctrl) light amount adjustment values, respectively; characterized by: a corrector configured to correct the image signal based on a first color correction value (Sg) calculated based on the first light amount adjustment value (Sctrl) and first correction data for correcting a color unbalance in the projected full-color image caused by a change in the spectrum of the light when the optical element is controlled according to the first light amount adjustment value (Sctrl), and a second color correction value (Lg) calculated based on the second light amount adjustment value (Lctrl) and second correction data for correcting a color unbalance of the projected full-color image caused by a change in the spectrum of the light when the light source (1 16) is controlled according to the second light amount adjustment value (Lctrl). a light source configured to emit light having a light amount which is controllable according to a second light amount adjustment value (Lctrl); an optical element configured to adjust the light amount of the light emitted from the light source according to a first light amount adjustment value (Sctrl); an optical modulator configured to modulate the light passing through the optical element according to an image signal; an image signal analyzer configured to detect information on a brightness level of the image signal; and a controller (101, 108, 109, 110, 111) configured to set the first (Sctrl) and the second (Lctrl) light amount adjustment values according to a target light amount adjustment value (Actrl) based on the information on the brightness level of the image signal and to control the optical element and the light source in accordance with the first (Sctrl) and the second (Lctrl) light amount adjustment values, respectively; characterized by: a corrector configured to correct the image signal based on a first color correction value (Sg) calculated based on the first light amount adjustment value (Sctrl) and first correction data for correcting a color unbalance in the projected full-color image caused by a change in the spectrum of the light when the optical element is controlled according to the first light amount adjustment value (Sctrl), and a second color correction value (Lg) calculated based on the second light amount adjustment value (Lctrl) and second correction data for correcting a color unbalance of the projected full-color image caused by a change in the spectrum of the light when the light source (1 16) is controlled according to the second light amount adjustment value (Lctrl). a corrector configured to correct the image signal based on a first color correction value (Sg) calculated based on the first light amount adjustment value (Sctrl) and first correction data for correcting a color unbalance in the projected full-color image caused by a change in the spectrum of the light when the optical element is controlled according to the first light amount adjustment value (Sctrl), and a second color correction value (Lg) calculated based on the second light amount adjustment value (Lctrl) and second correction data for correcting a color unbalance of the projected full-color image caused by a change in the spectrum of the light when the light source (1 16) is controlled according to the second light amount adjustment value (Lctrl).