This work presents the possibility of using the extremely popular compact digital cameras of smartphones or action cameras to perform sky photometry. The newest generation of these devices allows to save raw images. They are not as good as digital single-lens reflex camera, in particular in terms of sensitivity, noise and pixel depth (10 bit versus 12 bit or more), but they have the advantage of being extremely widespread on the population and relatively cheap. These economical digital compact cameras work with an electronic shutter, it overcomes the consumption of mechanics and allows to gather images for long time. The work uses a simple calibration method to transfer raw data from the proprietary RGB color space to the standard CIE 1931 color space. It allows the measurement of sky luminance in cd m⁻² with an expected uncertainty of about 20%. Furthermore, the colorimetric calibration allows to know the correlated color temperature of a portion of the sky, it can help the identification of the kind of polluting sources. Aiming at better clarifying the performances of calibrated digital compact cameras, a comparison with a calibrated DSLR camera is presented in outdoor situations showing a good agreement both for luminance and color temperature measurements.

这项工作提出了使用非常流行的智能手机或运动相机的紧凑型数码相机进行天空测光的可能性。这些设备的最新一代可以保存原始图像。它们在灵敏度，噪声和像素深度（10位比12位或更多）方面不如数码单反相机好，但是它们具有在人群中非常广泛且相对便宜的优势。这些经济型紧凑型数码相机可与电子快门配合使用，克服了机械消耗，并可以长时间收集图像。该作品使用一种简单的校准方法将原始数据从专有RGB颜色空间传输到标准CIE 1931颜色空间。它允许以cd m ^-2表示天空亮度预期不确定性约为20％。此外，比色校准允许知道天空的一部分的相关色温，它可以帮助识别污染源的种类。为了更好地阐明校准后的数码紧凑型相机的性能，在室外情况下与校准后的数码单反相机进行了比较，显示了亮度和色温测量方面的良好一致性。