Research And Application Of Digital Image Generation Melody Algorithm Based On LabVIEW

With the rapid development of digital technology,a certain market impact has occurred on the development of paper media.But sales of Chinese book retail market still showed a growth trend year by year.The profit space of paper media still exists,including the sale of children's book accounted for 28%.The integration of electronic technology and paper media to enhance the interactive nature of books has become an popular trend.Although the interaction is mainly based on multi-scene representation at present,and it is rare for children to participate in the integration of electronic and paper media.Based on the study of digital image and musical melody characteristics,this thesis proposed an algorithm for converting digital image into melody,which was verified then;including discussion of the application of the algorithm.(1)Verification of the established model of music composition based on Lab VIEW histogram.It was proposed to creat a digital image musical melody algorithm based on dice music composition algorithm in the view of histogram.According to the number of gray pixels of digital image gray histogram,an algorithm of musical melody conversion was established considering the relation between the spectrum line and histogram of melody.The MIDI file was output by Lab VIEW,verified the validity of the model.The evaluation results showed that different digital image histograms could be translated into different melodies,which verified the generated melody could reflect the general change trend of gray histogram after the process of different gray histogram.(2)Verification of the established model of music composition based on Lab VIEW drawing curveBased on the Lab VIEW gray histogram transform melody model,a model of curve transform musical melody was proposed.The digital image material was obtained by drawing in the program or photographing the curve image drawn on paper,which determined the relationship between the curve and the melody line based on the spatial position of the curve in the digital image.The correction of out model was verified by outputting MIDI files and playing,applied by bitmap,single line and multi-line images.The results showed that the generated melody line could refer the position relation of curve by controlling generated melody lines with single line pictures.(3)Application and analysis of digital image musical melody algorithmThe different rhythm patterns of music tracks was obtained by analyzing musical tracks.Different rhythmic melodies were created by rhythm patterns based on Lab VIEW digital image musical melody algorithm.The application of digital image musical melody algorithm model was verified through the selection of fixed tracks,changing rhythm tracks and the fusion of AR technology.The results showed that it was applicable by selecting the pitch and index of the fixed track,the parameter editing and AR file editing of the variable rhythm track could be applied.The validity of the algorithm was proved.This thesis studied the relation between musical melody and digital image by established digital image musical melody algorithm model based on Lab VIEW.The application of such model was created by playing music which improving interactivity and interest of children's books in printing,showing extensive application prospect and value.