A light communication system, comprising: a transmitter configured to embed processed data at one or more frequency coefficients in a frequency domain transform of an image to generate a modulated image, perform an inverse discrete cosine transform to transform the modulated image from a frequency domain to a spatial domain, and form a transmitter-side communication data embedded image by embedding multiple RGB values in the image; and a receiving apparatus configured to detect the transmitter-side communication data embedded image transmitted by a light emitting device and generate a receiver-side communication data embedded image, perform an image warping processing to compensate for a deformation of the receiver-side communication data embedded image, and extract the processed data from a warped communication data embedded image, the light communication system being characterized in that: in said transmitter, the transmitter-side communication data embedded image is formed by embedding the modulated image on an eye insensitive part of one or more frequency coefficients in a spatial domain of the image; in said receiving apparatus, the image warping processing is executed by performing a coordinate conversion on a plurality of pixel data in an area of the transmitter-side communication data embedded image so as to output the warped communication data embedded image in a spatial domain, and the processed data in the frequency domain is extracted from the warped communication data embedded image in the spatial domain by performing a discrete cosine transform. a transmitter configured to embed processed data at one or more frequency coefficients in a frequency domain transform of an image to generate a modulated image, perform an inverse discrete cosine transform to transform the modulated image from a frequency domain to a spatial domain, and form a transmitter-side communication data embedded image by embedding multiple RGB values in the image; and a receiving apparatus configured to detect the transmitter-side communication data embedded image transmitted by a light emitting device and generate a receiver-side communication data embedded image, perform an image warping processing to compensate for a deformation of the receiver-side communication data embedded image, and extract the processed data from a warped communication data embedded image, the light communication system being characterized in that: in said transmitter, the transmitter-side communication data embedded image is formed by embedding the modulated image on an eye insensitive part of one or more frequency coefficients in a spatial domain of the image; in said receiving apparatus, the image warping processing is executed by performing a coordinate conversion on a plurality of pixel data in an area of the transmitter-side communication data embedded image so as to output the warped communication data embedded image in a spatial domain, and the processed data in the frequency domain is extracted from the warped communication data embedded image in the spatial domain by performing a discrete cosine transform. in said transmitter, the transmitter-side communication data embedded image is formed by embedding the modulated image on an eye insensitive part of one or more frequency coefficients in a spatial domain of the image; in said receiving apparatus, the image warping processing is executed by performing a coordinate conversion on a plurality of pixel data in an area of the transmitter-side communication data embedded image so as to output the warped communication data embedded image in a spatial domain, and the processed data in the frequency domain is extracted from the warped communication data embedded image in the spatial domain by performing a discrete cosine transform.