Method for obtaining and associating 2D image data with 3D image data, said 3D image data being based on first intensity peak positions (471; 571) resulting from light triangulation performed by an imaging system comprising a first light source for illuminating a measure object (220; 520) with first light (211; 512) and an image sensor for sensing reflected first light (413; 513) from the measure object (220; 520), wherein the light triangulation comprises to illuminate a first portion of the measure object (220; 520) with the first light (211; 512) and sense reflected first light (413; 513) from the first portion by the image sensor during a first exposure period resulting in a first image with first intensity peaks occurring at first sensor positions, SP1, (471; 571) and illuminate another, second, portion of the measure object (220; 520) adjacent to said first portion with the first light (211; 512) and sense reflected first light from the second portion by the image sensor during another, second exposure period resulting in a second image with second intensity peaks occurring at second sensor positions,SP2, and wherein the imaging system further comprises one or more additional, second, light sources for illuminating the measure object (220; 520) with one or more second lights, wherein the method comprises: - illuminating the measure object (220; 520) with said one or more second lights and sensing any reflected second light from the measure object (220; 520) by the image sensor during one or more third exposure periods resulting in one or more third images, - selecting, for respective first sensor position, SP1, (471; 571) in the first image, a respective third sensor position, SP3, (473; 573) in said one or more third images and providing said illumination with the one or more second lights such that during said one or more third exposure periods, any reflected second light from the measure object (220; 520) will result in higher intensity than reflected first light (413; 513) in the selected third sensor positions, SP3, (473; 573), and - obtaining 2D image data of respective selected third sensor position, SP3, (473; 573) in said one or more third images and associating the obtained 2D image data with the first sensor position, SP1, (471; 571) that the respective selected third sensor position, SP3, (473; 573) was selected for, whereby the obtained 2D image data become associated with the 3D image data, whereby at least the step of associating is executed by a processing means. - illuminating the measure object (220; 520) with said one or more second lights and sensing any reflected second light from the measure object (220; 520) by the image sensor during one or more third exposure periods resulting in one or more third images, - selecting, for respective first sensor position, SP1, (471; 571) in the first image, a respective third sensor position, SP3, (473; 573) in said one or more third images and providing said illumination with the one or more second lights such that during said one or more third exposure periods, any reflected second light from the measure object (220; 520) will result in higher intensity than reflected first light (413; 513) in the selected third sensor positions, SP3, (473; 573), and - obtaining 2D image data of respective selected third sensor position, SP3, (473; 573) in said one or more third images and associating the obtained 2D image data with the first sensor position, SP1, (471; 571) that the respective selected third sensor position, SP3, (473; 573) was selected for, whereby the obtained 2D image data become associated with the 3D image data,